favGifSearch: don't error on favourited non-urls (#2260)

src/plugins/favGifSearch/index.tsx

@@ -200,7 +200,14 @@ function SearchBar({ instance, SearchBarComponent }: { instance: Instance; Searc
 
 
 export function getTargetString(urlStr: string) {
-    const url = new URL(urlStr);
+    let url: URL;
+    try {
+        url = new URL(urlStr);
+    } catch (err) {
+        // Can't resolve URL, return as-is
+        return urlStr;
+    }
+
     switch (settings.store.searchOption) {
         case "url":
             return url.href;