Multiple widgets using same GlobalKey

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Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Run the app normally and check debug logs

Expected behavior
There should be no errors regarding keys and global keys must be used on individual widgets only once

Actual behavior
Some widgets are inserted in the widget tree multiple times causing Multiple widgets used the same GlobalKey error. This doesn't crash the app, but still is bad and causes problems in testing.

Screenshots

Additional details
During testing, I found out that this issue comes from explore_events.dart file with this key assignment, along with other pages used in MainScreen Widget

The problem is that navBarItems is first initialized with all the BottomNavigationBarItem, but some of these items are again added to the list in the renderBottomNavBarPlugins method.

Fix

Removing duplicate BottomNavigationBarItem addition fixes the problem

I would like to know if this issue is hitting multiple people. @palisadoes @noman2002 @CyberWake @Ayush0Chaudhary