fix(newScript): add default `@match` rule

src/background/utils/script.js

@@ -56,7 +56,14 @@ export function newScript() {
     custom: {},
     enabled: 1,
     update: 1,
-    code: '// ==UserScript==\n// @name New Script\n// @namespace Violentmonkey Scripts\n// @grant none\n// ==/UserScript==\n',
+    code: `\
+// ==UserScript==
+// @name New Script
+// @namespace Violentmonkey Scripts
+// @match *://*/*
+// @grant none
+// ==/UserScript==
+`,
   };
   script.meta = parseMeta(script.code);
   return script;