fix: reuse existing i18n string for MIME type mismatch error

Agent-Logs-Url: https://github.com/Codeinwp/optimole-wp/sessions/a9c6ff77-c741-4d3d-9004-4d12974a746f

Co-authored-by: vytisbulkevicius <36594177+vytisbulkevicius@users.noreply.github.com>

Author: Claude

inc/media_rename/attachment_edit.php

@@ -360,7 +360,7 @@ public function replace_file() {
 
 		$original_mime = get_post_mime_type( $id );
 		if ( $file_info['type'] !== $original_mime ) {
-			wp_send_json_error( __( 'Uploaded file type does not match the original attachment', 'optimole-wp' ) );
+			wp_send_json_error( __( 'The uploaded file type does not match the original file type.', 'optimole-wp' ) );
 		}
 
 		$replacer = new Optml_Attachment_Replace( $id, $_FILES['file'] );