feat: Add Lawn Care Tips section and improve Dashboard layout

This commit introduces a new "Lawn Care Tips" section to the application and refines the visual layout of the main Dashboard.

**Key Changes:**

*   **Lawn Care Tips Feature:**
    *   Added `LawnCareTip` model with `Title`, `Category`, and `Content` properties.
    *   Defined `TipCategory` enum for better organization (Mowing, Watering, Fertilizing, Weed Control, Aeration, General).
    *   Integrated `LawnCareTip` into `ApplicationDbContext` for database persistence.
    *   Updated `_Layout.cshtml` to include a new "Lawn Tips" navigation link.

*   **Dashboard Layout Fix:**
    *   Refactored `Views/Home/Index.cshtml` to correctly use Bootstrap's grid system by placing the "Log a New Activity" card in its own `div.row`. This resolves the layout issue where the card was appearing immediately after the previous row without proper spacing.
    *   Updated `HomeController` to include a `LastAerationDate` query for the dashboard display.
    *   Modified `DashboardViewModel` to include `LastAerationDate`.

*   **Build/Dependency Updates:**
    *   Added `Microsoft.EntityFrameworkCore.SqlServer` (likely a residue from scaffolding, though SQLite is still primary).
    *   Added `Microsoft.VisualStudio.Web.CodeGeneration.Design` for scaffolding tools.

This enhances the application's functionality by providing a knowledge base and improves the user experience with a cleaner dashboard layout.

Views/LawnCareTip/Create.cshtml

@@ -0,0 +1,40 @@
+@model turf_tasker.Models.LawnCareTip
+
+@{
+    ViewData["Title"] = "Create";
+}
+
+<h1>Create</h1>
+
+<h4>LawnCareTip</h4>
+<hr />
+<div class="row">
+    <div class="col-md-4">
+        <form asp-action="Create">
+            <div asp-validation-summary="ModelOnly" class="text-danger"></div>
+            <div class="form-group">
+                <label asp-for="Title" class="control-label"></label>
+                <input asp-for="Title" class="form-control" />
+                <span asp-validation-for="Title" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <label asp-for="Category" class="control-label"></label>
+                <select asp-for="Category" class="form-control"></select>
+                <span asp-validation-for="Category" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <label asp-for="Content" class="control-label"></label>
+                <textarea asp-for="Content" class="form-control"></textarea>
+                <span asp-validation-for="Content" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <input type="submit" value="Create" class="btn btn-primary" />
+            </div>
+        </form>
+    </div>
+</div>
+
+<div>
+    <a asp-action="Index">Back to List</a>
+</div>
+

Views/LawnCareTip/Delete.cshtml

@@ -0,0 +1,39 @@
+@model turf_tasker.Models.LawnCareTip
+
+@{
+    ViewData["Title"] = "Delete";
+}
+
+<h1>Delete</h1>
+
+<h3>Are you sure you want to delete this?</h3>
+<div>
+    <h4>LawnCareTip</h4>
+    <hr />
+    <dl class="row">
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Title)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Title)
+        </dd>
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Category)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Category)
+        </dd>
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Content)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Content)
+        </dd>
+    </dl>
+    
+    <form asp-action="Delete">
+        <input type="hidden" asp-for="Id" />
+        <input type="submit" value="Delete" class="btn btn-danger" /> |
+        <a asp-action="Index">Back to List</a>
+    </form>
+</div>

Views/LawnCareTip/Details.cshtml

@@ -0,0 +1,36 @@
+@model turf_tasker.Models.LawnCareTip
+
+@{
+    ViewData["Title"] = "Details";
+}
+
+<h1>Details</h1>
+
+<div>
+    <h4>LawnCareTip</h4>
+    <hr />
+    <dl class="row">
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Title)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Title)
+        </dd>
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Category)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Category)
+        </dd>
+        <dt class = "col-sm-2">
+            @Html.DisplayNameFor(model => model.Content)
+        </dt>
+        <dd class = "col-sm-10">
+            @Html.DisplayFor(model => model.Content)
+        </dd>
+    </dl>
+</div>
+<div>
+    <a asp-action="Edit" asp-route-id="@Model?.Id">Edit</a> |
+    <a asp-action="Index">Back to List</a>
+</div>

Views/LawnCareTip/Edit.cshtml

@@ -0,0 +1,41 @@
+@model turf_tasker.Models.LawnCareTip
+
+@{
+    ViewData["Title"] = "Edit";
+}
+
+<h1>Edit</h1>
+
+<h4>LawnCareTip</h4>
+<hr />
+<div class="row">
+    <div class="col-md-4">
+        <form asp-action="Edit">
+            <div asp-validation-summary="ModelOnly" class="text-danger"></div>
+            <input type="hidden" asp-for="Id" />
+            <div class="form-group">
+                <label asp-for="Title" class="control-label"></label>
+                <input asp-for="Title" class="form-control" />
+                <span asp-validation-for="Title" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <label asp-for="Category" class="control-label"></label>
+                <select asp-for="Category" class="form-control"></select>
+                <span asp-validation-for="Category" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <label asp-for="Content" class="control-label"></label>
+                <textarea asp-for="Content" class="form-control"></textarea>
+                <span asp-validation-for="Content" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <input type="submit" value="Save" class="btn btn-primary" />
+            </div>
+        </form>
+    </div>
+</div>
+
+<div>
+    <a asp-action="Index">Back to List</a>
+</div>
+

Views/LawnCareTip/Index.cshtml

@@ -0,0 +1,47 @@
+@model IEnumerable<turf_tasker.Models.LawnCareTip>
+
+@{
+    ViewData["Title"] = "Index";
+}
+
+<h1>Index</h1>
+
+<p>
+    <a asp-action="Create">Create New</a>
+</p>
+<table class="table">
+    <thead>
+        <tr>
+            <th>
+                @Html.DisplayNameFor(model => model.Title)
+            </th>
+            <th>
+                @Html.DisplayNameFor(model => model.Category)
+            </th>
+            <th>
+                @Html.DisplayNameFor(model => model.Content)
+            </th>
+            <th></th>
+        </tr>
+    </thead>
+    <tbody>
+@foreach (var item in Model) {
+        <tr>
+            <td>
+                @Html.DisplayFor(modelItem => item.Title)
+            </td>
+            <td>
+                @Html.DisplayFor(modelItem => item.Category)
+            </td>
+            <td>
+                @Html.DisplayFor(modelItem => item.Content)
+            </td>
+            <td>
+                <a asp-action="Edit" asp-route-id="@item.Id">Edit</a> |
+                <a asp-action="Details" asp-route-id="@item.Id">Details</a> |
+                <a asp-action="Delete" asp-route-id="@item.Id">Delete</a>
+            </td>
+        </tr>
+}
+    </tbody>
+</table>