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>

config/webpack/resolve.js

@@ -9,6 +9,7 @@ const resolve = {
     survey: path.resolve('./app/javascript/survey'),
     assets: path.resolve('./app/javascript/dashboard/assets'),
     components: path.resolve('./app/javascript/dashboard/components'),
+    helpers: path.resolve('./app/javascript/shared/helpers'),
     './iconfont.eot': 'vue-easytable/libs/font/iconfont.eot',
     './iconfont.woff': 'vue-easytable/libs/font/iconfont.woff',
     './iconfont.ttf': 'vue-easytable/libs/font/iconfont.ttf',