feat: update error codes in the avatars API

app/config/errors.php

@@ -201,6 +201,11 @@ return [
         'description' => 'The remote URL could not be fetched.',
         'statusCode' => 404,
     ],
+    Exception::AVATAR_ICON_NOT_FOUND => [
+        'name' => Exception::AVATAR_ICON_NOT_FOUND,
+        'description' => 'The requested favicon could not be found.',
+        'statusCode' => 404,
+    ],
 
 
     /** Files */

app/controllers/api/avatars.php

@@ -317,7 +317,7 @@ App::get('/v1/avatars/favicon')
             $data = @\file_get_contents($outputHref, false);
 
             if (empty($data) || (\mb_substr($data, 0, 5) === '<html') || \mb_substr($data, 0, 5) === '<!doc') {
-                throw new Exception('Favicon not found', 404);
+                throw new Exception('Favicon not found', 404, Exception::AVATAR_ICON_NOT_FOUND);
             }
 
             $cache->save($key, $data);
@@ -333,7 +333,7 @@ App::get('/v1/avatars/favicon')
         $fetch = @\file_get_contents($outputHref, false);
 
         if (!$fetch) {
-            throw new Exception('Icon not found', 404);
+            throw new Exception('Icon not found', 404, Exception::AVATAR_ICON_NOT_FOUND);
         }
 
         $image = new Image($fetch);

src/Appwrite/Extend/Exception.php

@@ -58,6 +58,7 @@ class Exception extends \Exception
     const AVATAR_IMAGE_NOT_FOUND           = 'avatar_image_not_found';
     const AVATAR_CANNOT_PARSE_IMAGE        = 'avatar_cannot_parse_image';
     const AVATAR_REMOTE_URL_FAILED         = 'avatar_remote_url_failed';
+    const AVATAR_ICON_NOT_FOUND            = 'avatar_icon_not_found';
 
     /** Files */
     const FILE_NOT_FOUND                   = 'file_not_found';