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* fix outdated code and broken components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

exampleSite/content/english/sections/clients.md

@@ -0,0 +1,19 @@
+---
+enable: true
+title: "Who trust our judgment"
+client_logos:
+  - "/images/clients/client-logo-one.png"
+  - "/images/clients/client-logo-two.png"
+  - "/images/clients/client-logo-three.png"
+  - "/images/clients/client-logo-four.png"
+  - "/images/clients/client-logo-five.png"
+  - "/images/clients/client-logo-six.png"
+  - "/images/clients/client-logo-seven.png"
+  - "/images/clients/client-logo-eight.png"
+  - "/images/clients/client-logo-nine.png"
+  - "/images/clients/client-logo-ten.png"
+
+# don't create a separate page
+build:
+  render: "never"
+---