Add incognito mode on video tab of bottom navigation bar

Description

This will add an incognito checkbox menu item right over refresh button at the right top three dot menu of video tab.

Motivation and Context

Users want privacy while using app.

How Has This Been Tested?

Tested on physical android phone with Android 12

Screenshots / GIFs (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Enhancement (non-breaking change which cleans up / improves existing functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the CONTRIBUTING section of the README document.

Resolves

Fixes: #2122 (closed)