feat: implement htmx with partials on index and cps pages

crates/app/src/pages/index.html

@@ -6,7 +6,7 @@
 {% block body %}
 {% call navbar::navbar(current="home") %}
 <div class="py-10">
-  <header>
+  <header id="page-header">
     <div class="mx-auto max-w-7xl px-4 sm:px-6 lg:px-8">
       <h1
         id="page-title"
@@ -16,9 +16,8 @@
       </h1>
     </div>
   </header>
-  <main>
+  <main id="page-main">
     <div
-      id="main-container"
       class="mx-auto max-w-7xl px-4 py-8 sm:px-6 lg:px-8"
     >
       <div class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4 mb-4">