feat: return relative path to converted file

Signed-off-by: Elizabeth Danzberger <[email protected]>

apps/files/lib/Controller/ConversionApiController.php

@@ -86,7 +86,7 @@ public function convert(int $fileId, string $targetMimeType, ?string $destinatio
 		}
 
 		return new DataResponse([
-			'path' => $convertedFile,
+			'path' => PathHelper::getRelativePath($userFolder->getInternalPath(), $convertedFile) ?? $convertedFile,
 		], Http::STATUS_CREATED);
 	}
 }