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

• Implemented automatic polling for new store package purchases & bans
• Added /sync chat command for syncing roles & package purchases manually
• Added an option to choose servers to sync each role on
• Fixed default config.php indentation (no new options were added)

Files modified:

• lua/ember/lua/autorun/client/ember.lua
• lua/ember/lua/ember/init.lua
• lua/ember/lua/ember/store.lua
• lua/ember/lua/ember_config.lua
• web/app/Controllers/AdminController.php
• web/app/Controllers/MigrationController.php
• web/app/Controllers/PagesController.php
• web/app/Controllers/ServerApiController.php
• web/app/Models/Role.php
• web/app/Models/RoleSyncExcludedServer.php
• web/app/Models/User.php
• web/app/routes.php
• web/config.php
• web/public/js/app.js
• web/public/mix-manifest.json
• web/resources/js/components/RoleManager.vue
• web/resources/views/admin/roles.twig