Maintain selected row’s background color in row selection

[mohdsayed]

Description

As we highlight the selected row in grey background color, it looses its original color during selection. This PR aims to change the selection color for each row.

Relevant Technical Choices

• Update selection classes

Testing Instructions

Additional Information:

Screenshot/Screencast

selection-color.mp4

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Checklist

• I have thoroughly tested this code to the best of my abilities.
• I have reviewed the code myself before requesting a review.
• This code is covered by unit tests to verify that it works as intended.
• The QA of this PR is done by a member of the QA team (to be checked by QA).

Fixes #

[mohdsayed]

Closing in favour of #556