feat: Google OAuth for login & signup (#6346)

This PR adds Google OAuth for all existing users, allowing users to log in or sign up via their Google account.

---------

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>
Co-authored-by: Fayaz Ahmed <15716057+fayazara@users.noreply.github.com>
Co-authored-by: Sojan <sojan@pepalo.com>

app/javascript/dashboard/routes/auth/components/Testimonials/Index.vue

@@ -84,6 +84,7 @@ export default {
   background: var(--w-400);
   display: flex;
   flex: 1 1;
+  overflow: hidden;
   position: relative;
 }