Fix navbar

[Shivamtawar]

Describe the bug
Navbar is properly aligned to the content. To open the navbar it is required to be a specific 3 dot button to open it bu it is missing so try to fix it as well

To Reproduce
Steps to reproduce the behavior:

1. Go to 'app/src/main/res'
2. Click on 'main layout'
3. Scroll down to 'navbar'
4. See error

Expected behavior
navbar should be synced with the ui of the project and image on the navbar should be changed

Screenshots