Update extension description to match functionality.

Author: manastungare

src/_locales/en/messages.json

@@ -4,7 +4,7 @@
     "description": "The name of this extension."
   },
   "google_calendar_extension_desc": {
-    "message": "Easily check Google Calendar and add new events from websites you visit.",
+    "message": "Quick overview of your Google Calendar with one-click access to locations & documents",
     "description": "Description of what this extension does."
   },
   "logo_text": {