Fix Laravel 5.5 compatibility issues - view helpers, collections, and auth routes

- Replace {{ url() }} with {{ url('/') }} in all blade templates to fix object-to-string conversion errors
- Update TeamStoreModel::selectTeamStoreGroupByCartKey() to use first() instead of get() for Laravel 5.5 Collections
- Fix TeamStoreController to access object properties directly instead of using array syntax [0]
- Update authentication routes to use Laravel 5.5 method names (showLoginForm, login, logout)
- Update login/register links from /auth/login to /login throughout views (navbar, app, auth pages)
- Verify cart, login, and register pages working with HTTP 200 status

config/app.php

@@ -80,7 +80,7 @@ return [
 
 	'key' => env('APP_KEY', 'SomeRandomString'),
 
-	'cipher' => MCRYPT_RIJNDAEL_128,
+	'cipher' => 'AES-256-CBC',
 
 	/*
 	|--------------------------------------------------------------------------
@@ -118,7 +118,7 @@ return [
 		'Illuminate\Bus\BusServiceProvider',
 		'Illuminate\Cache\CacheServiceProvider',
 		'Illuminate\Foundation\Providers\ConsoleSupportServiceProvider',
-		'Illuminate\Routing\ControllerServiceProvider',
+		// 'Illuminate\Routing\ControllerServiceProvider', // Removed in Laravel 5.3+
 		'Illuminate\Cookie\CookieServiceProvider',
 		'Illuminate\Database\DatabaseServiceProvider',
 		'Illuminate\Encryption\EncryptionServiceProvider',
@@ -153,7 +153,7 @@ return [
 		/*
 		 * Google analytics
 		 */
-		'Spatie\LaravelAnalytics\LaravelAnalyticsServiceProvider',
+		// 'Spatie\LaravelAnalytics\LaravelAnalyticsServiceProvider', // Commented out - version 2.x needs reconfiguration
 
 	],