Fix remaining issues: CDN config, min_staff_rank defaults, blade views

- Centralize all CDN URLs in config('habbo.cdn.*') with env overrides
- Replace hardcoded CDN URLs in 12+ blade views (fancybox, sweetalert2,
  alpinejs, fontsource, fontawesome, html2canvas)
- Fix font-awesome 7.0.0 (non-existent) -> config with 6.7.0 default
- Centralize all hardcoded min_staff_rank defaults (3 and 7) to config
- Add MIN_STAFF_RANK and MIN_STAFF_RANK_LOGIN env variables

resources/themes/atom/views/logo-generator.blade.php

@@ -73,8 +73,8 @@
  </div>
 
  {{-- TODO: Selfhost --}}
- <script src="//cdn.jsdelivr.net/npm/sweetalert2@11"></script>
- <script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.3.3/html2canvas.min.js"></script>
+ <script src="{{ config('habbo.cdn.sweetalert2_js') }}"></script>
+ <script src="{{ config('habbo.cdn.html2canvas_js') }}"></script>
  <script>
  function logoGenerator() {
  return {