Vertical Menu fix

[Dishebh]

trafficstars

Fixes #2178

Short description of what this resolves:

Fixed the vertical menu on scroll

Checklist

• [x] I have read the Contribution & Best practices Guide.
• [x] My branch is up-to-date with the Upstream development branch.
• [x] The acceptance, integration, unit tests and linter pass locally with my changes
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] I have added necessary documentation (if appropriate)

[rajvaibhavdubey]

@Dishebh Update your branch

[Dishebh]

@abishekvashok pls review. Thanks.

[Dishebh]

@rajvaibhavdubey pls merge, you have already approved. Thanks

[Dishebh]

@kushthedude removed custom css part.

[maze-runnar]

@Dishebh please provide GIF after changes?