feat: show version on the userscript manager menu

src/wrapper.js

@@ -8,6 +8,11 @@ w[gmId] = _GM;
 
 if (_GM && _GM.registerMenuCommand && _GM.openInTab) {
   // add buttons to the userscript manager menu
+  _GM.registerMenuCommand(
+    `** Version: ${_GM.info.script.version} **`,
+    () => _GM.openInTab("https://github.com/Xmader/musescore-downloader/releases", { active: true })
+  )
+
   _GM.registerMenuCommand(
     '** Source Code **',
     () => _GM.openInTab(_GM.info.script.homepage, { active: true })