chore(ui): Formatted and cleaned up the code

templates/newsletters.html

@@ -29,7 +29,9 @@
               </div>
               <div class="newsletter-info">
                 <h2>
-                  <a href="/newsletter/{{ nl['id'] }}">{{ nl['subject'] }}</a>
+                  <a href="{{ url_for('newsletter_detail', newsletter_id=nl['id']) }}">
+                    {{ nl['subject'] }}
+                  </a>
                 </h2>
               </div>
             </div>
@@ -43,12 +45,15 @@
               {% if nl.get('preview') %}
                 {{ nl['preview'][:150] }}...
               {% else %}
-                Get the latest updates on cycling training, performance tips, and
-                RideAware features in this newsletter edition.
+                Get the latest updates on cycling training, performance tips,
+                and RideAware features in this newsletter edition.
               {% endif %}
             </div>
 
-            <a href="/newsletter/{{ nl['id'] }}" class="read-more-btn">
+            <a
+              href="{{ url_for('newsletter_detail', newsletter_id=nl['id']) }}"
+              class="read-more-btn"
+            >
               Read Full Newsletter
               <i class="fas fa-arrow-right"></i>
             </a>
@@ -65,7 +70,7 @@
           We're working on some amazing content for you. Subscribe to be the
           first to know when we publish our newsletters!
         </p>
-        <a href="/" class="subscribe-prompt">
+        <a href="{{ url_for('index') }}" class="subscribe-prompt">
           <i class="fas fa-bell"></i>
           Subscribe for Updates
         </a>