feat: Enhance dashboard with stats cards and task filtering

- Added stats cards to display active, completed, overdue, and due-today tasks on the dashboard.
- Implemented search functionality to filter tasks in real-time based on user input.
- Introduced quick-pick date buttons for easier task date selection.
- Updated task rendering logic to handle empty states for task lists.
- Improved overall user interface with new CSS styles for stat cards and buttons.

chore: Update environment variables and backend error handling

- Fixed formatting in the .env file for consistency.
- Enhanced error handling in the backend API for better debugging.

feat: Revamp frontend pages with new features and pricing sections

- Redesigned the index.html page to include a hero section and feature highlights.
- Created a new features page with dynamic loading of features from JSON.
- Implemented a pricing page that loads plans from JSON and highlights the featured plan.
- Added support and FAQ sections with dynamic content loading and contact form functionality.
- Introduced JSON files for FAQs, features, and pricing to allow easy updates without code changes.

frontend/features.html

@@ -45,21 +45,23 @@
     </div>
   </nav>
 
-  <!-- ↓ Page not ready ↓ -->
-  <section class="bg-img d-flex justify-content-center align-items-center support py-5">
-    <div class="container text-center text-white py-5">
-      <img src="./images/Construction.svg" alt="Under Construction" height="150px" width="auto" />
+  <section class="bg-img py-5">
+    <div class="container py-5">
+      <div class="text-center text-white mb-5">
+        <h1 class="display-3">Everything you need to stay on top</h1>
+        <p class="lead text-white-50">A focused set of features designed to get out of your way.</p>
+      </div>
 
-      <h2 class="mt-5">Page under construction. Check back later!</h2>
+      <div class="row" id="featuresContainer">
+        <div class="col-12 text-center text-white-50">Loading features…</div>
+      </div>
 
-      <div class="mt-5">
-        <a href="./index.html" class="btn btn-primary px-4">Go Home</a>
+      <div class="text-center mt-4">
+        <a href="./dashboard.html" class="btn btn-primary btn-lg px-5">Try the dashboard</a>
       </div>
     </div>
   </section>
-  <!-- ↑ Page not ready ↑ -->
 
-  <!-- ↓ Footer ↓ -->
   <footer>
     <div class="py-5 container">
       <div class="d-flex justify-content-between flex-column gap-5 gap-md-0 flex-md-row align-items-center px-3 mb-5">
@@ -90,6 +92,7 @@
     </div>
   </footer>
 
+  <script src="./js/features.js"></script>
   <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/js/bootstrap.bundle.min.js"
     integrity="sha384-FKyoEForCGlyvwx9Hj09JcYn3nv7wiPVlz7YYwJrWVcXK/BmnVDxM+D2scQbITxI"
     crossorigin="anonymous"></script>