Framework: Upgrade from Laravel 9 to 10

Following Laravel guidance and GitHub diff.
Not yet in tested state with app-specific changes made.

app/Http/Kernel.php

@@ -45,11 +45,11 @@ class Kernel extends HttpKernel
     ];
 
     /**
-     * The application's route middleware.
+     * The application's middleware aliases.
      *
      * @var array
      */
-    protected $routeMiddleware = [
+    protected $middlewareAliases = [
         'auth'       => \BookStack\Http\Middleware\Authenticate::class,
         'can'        => \BookStack\Http\Middleware\CheckUserHasPermission::class,
         'guest'      => \BookStack\Http\Middleware\RedirectIfAuthenticated::class,

app/Http/Middleware/RedirectIfAuthenticated.php

@@ -6,19 +6,16 @@ use BookStack\App\Providers\RouteServiceProvider;
 use Closure;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
+use Symfony\Component\HttpFoundation\Response;
 
 class RedirectIfAuthenticated
 {
     /**
      * Handle an incoming request.
      *
-     * @param \Illuminate\Http\Request $request
-     * @param \Closure                 $next
-     * @param string|null              ...$guards
-     *
-     * @return mixed
+     * @param Closure(Request): (Response) $next
      */
-    public function handle(Request $request, Closure $next, ...$guards)
+    public function handle(Request $request, Closure $next, string ...$guards): Response
     {
         $guards = empty($guards) ? [null] : $guards;
 

app/Http/Middleware/ThrottleApiRequests.php

@@ -9,7 +9,7 @@ class ThrottleApiRequests extends Middleware
     /**
      * Resolve the number of attempts if the user is authenticated or not.
      */
-    protected function resolveMaxAttempts($request, $maxAttempts)
+    protected function resolveMaxAttempts($request, $maxAttempts): int
     {
         return (int) config('api.requests_per_minute');
     }

app/Http/Middleware/TrustHosts.php

@@ -9,9 +9,9 @@ class TrustHosts extends Middleware
     /**
      * Get the host patterns that should be trusted.
      *
-     * @return array
+     * @return array<int, string|null>
      */
-    public function hosts()
+    public function hosts(): array
     {
         return [
             $this->allSubdomainsOfApplicationUrl(),