Refactor fixes and adjustments

src/models/AdminModel.php

@@ -104,7 +104,7 @@ class AdminModel
                     'providerUrl'  => 'https://your-oidc-provider.com',
                     'clientId'     => 'YOUR_CLIENT_ID',
                     'clientSecret' => 'YOUR_CLIENT_SECRET',
-                    'redirectUri'  => 'https://yourdomain.com/auth.php?oidc=callback'
+                    'redirectUri'  => 'https://yourdomain.com/api/auth/auth.php?oidc=callback'
                 ],
                 'loginOptions' => [
                     'disableFormLogin' => false,

src/models/FolderModel.php

@@ -403,7 +403,7 @@ class FolderModel {
             $baseUrl = $protocol . "://" . $host;
         }
         // The share URL points to the shared folder page.
-        $link = $baseUrl . "api/folder/shareFolder.php?token=" . urlencode($token);
+        $link = $baseUrl . "/api/folder/shareFolder.php?token=" . urlencode($token);
         
         return ["token" => $token, "expires" => $expires, "link" => $link];
     }