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* fix outdated code and broken components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

.sitepins/config.json

@@ -0,0 +1,12 @@
+{
+  "content": "exampleSite/content",
+  "media": "exampleSite/assets/images",
+  "public": "exampleSite/static",
+  "configs": [
+    "exampleSite/config/_default",
+    "exampleSite/data",
+    "exampleSite/hugo.toml"
+  ],
+  "custom-commit": false,
+  "arrangement": []
+}