chore: migrate to Tailwind CSS v4.0 (#632)

* chore: migrate PostCSS configuration to v4

* chore: update dependencies in package.json and package-lock.json

- Bump versions for autoprefixer, postcss, postcss-cli, prettier, and tailwindcss.
- Remove unused dependencies to streamline the project.

* chore: add @tailwindcss/postcss and update package-lock.json

* fix: update import paths in CSS files for consistency

* fix: change prefix from `hx-` to `hx:`

* chore: migrate primary color theme variables to CSS

* fix: remove unnecessary text decoration property from anchor styles in typography CSS

* fix: update CSS styles for improved consistency and clarity across components

* chore: clean up package.json and package-lock.json, remove unused dependencies, and update CSS imports for better organization

* fix: bulk replace prefix `hx-` with `hx:`

* fix: update tailwind css prefix

* fix: styling consistent issues

- steps counter fix in v4
- removed tailwind.css
- update hr border colors
- fix button cursor in v4
- fix border colors in various places

* fix: update class prefixes for consistency in menu and sidebar components

* fix: refine CSS classes and transitions for navbar and sidebar components

- Updated hamburger menu styles for improved animation and structure.
- Adjusted sidebar transition duration for smoother effects.
- Standardized class prefixes for consistency across components.

* fix: update border color in hero badge component for improved styling consistency

* fix: update tab button cursor style for improved user interaction

* chore: recompile css

* fix: dark mode color not applied for before / after elements

* fix: docs navigation

* chore: recompile CSS

* chore: update Tailwind CSS and PostCSS dependencies to version 4.0.17, recompile CSS, and add safelist

* fix: typo in class name and add back decoration-from-font for typography a tags

* fix: update class syntax for Tailwind CSS compatibility in mermaid code block

layouts/partials/components/codeblock-copy-button.html

@@ -4,12 +4,12 @@
 {{- $copyCode := (T "copyCode") | default "Copy code" -}}
 
 
-<div class="hextra-code-copy-btn-container {{ if eq $display `hover` }}hx-opacity-0{{ end }} hx-transition group-hover/code:hx-opacity-100 hx-flex hx-gap-1 hx-absolute hx-m-[11px] hx-right-0 {{ if $filename }}hx-top-8{{ else }}hx-top-0{{ end }}">
+<div class="hextra-code-copy-btn-container {{ if eq $display `hover` }}hx:opacity-0{{ end }} hx:transition hx:group-hover/code:opacity-100 hx:flex hx:gap-1 hx:absolute hx:m-[11px] hx:right-0 {{ if $filename }}hx:top-8{{ else }}hx:top-0{{ end }}">
   <button
-    class="hextra-code-copy-btn hx-group/copybtn hx-transition-all active:hx-opacity-50 hx-bg-primary-700/5 hx-border hx-border-black/5 hx-text-gray-600 hover:hx-text-gray-900 hx-rounded-md hx-p-1.5 dark:hx-bg-primary-300/10 dark:hx-border-white/10 dark:hx-text-gray-400 dark:hover:hx-text-gray-50"
+    class="hextra-code-copy-btn hx:group/copybtn hx:cursor-pointer hx:transition-all hx:active:opacity-50 hx:bg-primary-700/5 hx:border hx:border-black/5 hx:text-gray-600 hx:hover:text-gray-900 hx:rounded-md hx:p-1.5 hx:dark:bg-primary-300/10 hx:dark:border-white/10 hx:dark:text-gray-400 hx:dark:hover:text-gray-50"
     title="{{ $copyCode }}"
   >
-    <div class="copy-icon group-[.copied]/copybtn:hx-hidden hx-pointer-events-none hx-h-4 hx-w-4"></div>
-    <div class="success-icon hx-hidden group-[.copied]/copybtn:hx-block hx-pointer-events-none hx-h-4 hx-w-4"></div>
+    <div class="copy-icon hx:group-[.copied]/copybtn:hidden hx:pointer-events-none hx:h-4 hx:w-4"></div>
+    <div class="success-icon hx:hidden hx:group-[.copied]/copybtn:block hx:pointer-events-none hx:h-4 hx:w-4"></div>
   </button>
 </div>