feat #SH-35 fix: Implemented create group popup form and welcome popup (#4098)

* feat #SH-35: Build new module for groups

* feat #SH-35: Added groups menu in main menubar and updated routes

* feat #SH-35: modified route condition

* feat #SH-35: Added new public module for groups

* feat #SH-35: Modified routes for non logged in users

* feat #SH-35: Added public and protected routes

* feat #SH-35: minor change

* feat #SH-35: minor change

* Issue #SH-35 fix: Added Functional welcome popup

* Issue #SH-35 fix: Implemented create group popup form

* Issue #SH-35 fix: User service and used resources for hardcoded strings

* Issue #SH-35 fix: Fix lint issue

* Issue #SH-35 fix: Added unit test case and fix code issue

* Issue #SH-35 fix: fix unit test case