feat: migrate Hugo Bootstrap theme to latest Hugo with Tailwind CSS and refactor codebase

* replace Bootstrap-based styling with Tailwind CSS
* update theme compatibility for latest Hugo version
* refactor templates and partials
* fix outdated code and broken components
* improve project structure and maintainability
* optimize styling and frontend build setup

layouts/single.html

@@ -0,0 +1,15 @@
+{{ define "main" }}
+
+
+  <section class="section pt-46">
+    <div class="container">
+      <div class="row justify-center">
+        <div class="lg:col-10">
+          <div class="content">
+            {{ .Content }}
+          </div>
+        </div>
+      </div>
+    </div>
+  </section>
+{{ end }}