Ember - donation system, bans, loading screen & landing/index page

1. Slight store API changes in preparation for Rust support (uMod plugin approval pending)
2. Store layout changes
3. server picker page
4. modal layout for store packages
5. store package images/icons
6. Implemented skeleton placeholders to bans table
7. Prevented dropping permanent weapons from store packages in DarkRP when GAMEMODE.Config.dropspawnedweapons is set to false
8. Minor bug fixes and improvements

Files modified:

1. lua/ember/lua/ember/store.lua
2. web/app/Controllers/AdminController.php
3. web/app/Controllers/MigrationController.php
4. web/app/Controllers/PagesController.php
5. web/app/Controllers/ServerApiController.php
6. web/app/Controllers/StoreController.php
7. web/app/Events/StorePackagePurchaseSaving.php
8. web/app/Models/Server.php
9. web/app/Models/StorePackage.php
10. web/app/Models/StorePackagePurchase.php
11. web/app/routes.php
12. web/bootstrap/app.php
13. web/package-lock.json
14. web/package.json
15. web/public/css/app.css
16. web/public/css/dark.css
17. web/public/js/adminvue.js
18. web/public/js/app.js
19. web/public/js/store.js
20. web/public/mix-manifest.json
21. web/resources/js/components/BansTable.vue
22. web/resources/js/components/StorePackages.vue
23. web/resources/sass/app.scss
24. web/resources/views/admin/packages.twig
25. web/resources/views/landing.twig
26. web/resources/views/layouts/footer.twig
27. web/resources/views/layouts/navbar.twig
28. web/resources/views/store/packages.twig
29. web/resources/views/store/serverpicker.twig
30. web/resources/views/templates/app.twig