chore(lint): enforce 2-space indent & add gpg pre-commit hook

src/composables/useExtension.js

@@ -31,7 +31,7 @@ export function useExtension() {
     extensionCheckInterval = setInterval(() => {
       window.postMessage({ type: 'TOOLS_APP_PING' }, '*')
       if (Date.now() - lastPongTime > TIMEOUT_THRESHOLD) {
-         isExtensionReady.value = false
+        isExtensionReady.value = false
       }
     }, PING_INTERVAL)
   }