fix(Popup): do not hide Popup with "hideOnScroll" when scroll comes from inside the Popup

[oskarwrobel]

Fixes an issue when Popup with hideOnScroll property hides on a scroll that comes from inside the Popup.
Closes #4305.

[welcome]

💖 Thanks for opening this pull request! 💖

Here is a list of things that will help get it across the finish line:

• Run yarn lint locally to catch formatting errors. This will fix some errors automatically, commit and push any changes.
• Run yarn test locally to catch errors. This ensures all components still behave as they should.
• Run yarn start to run the doc site locally and try a few pages, ensuring everything is in good working order.
• Include tests when adding/changing behavior.

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[codecov-commenter]

Codecov Report

Merging #4337 (572483c) into master (50f2952) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #4337   +/-   ##
=======================================
  Coverage   99.75%   99.75%           
=======================================
  Files         180      180           
  Lines        3245     3248    +3     
=======================================
+ Hits         3237     3240    +3     
  Misses          8        8           

Impacted Files	Coverage Δ
src/modules/Popup/Popup.js	98.93% <100.00%> (+0.03%)	⬆️

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[layershifter]

@oskarwrobel thanks for contributing ❤️ I tested on deployed doc site:
It still closes on scrolling inside... Can you please check

EDIT: NVM, it's a different case.

[welcome]

Congrats on merging your first pull request! 🎉🎉🎉