Social Icons: Avoid loss of previously selected background color when switching back from "Logos Only" style

[HILAYTRIVEDI]

I tested the code with different themes which are default provided by WordPress. No other functionalities are affected by the changes.

After the changes, I tested it with the different combinations of the use of the styling pattern, and it's working fine.

Video Demo Of Fix

https://www.awesomescreenshot.com/video/5232616?key=888676e6a53d9db85397b4430d64c810

Types of changes

The use effect in the file uses the previous state of the iconBackgroundColorValue and while the class changes it uses the value of preveIconBackgroundColorValue for the previously set value of the background.

Bugfix #34677

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• My code has proper inline documentation.

[github-actions]

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[stokesman]

Hi @HILAYTRIVEDI, this looks to be the same branch as #34834. It's still a great many commits behind trunk. I can checkout the branch and see about rebasing itbut we should probably close this PR and keep the other one open.

Update: I see they are different branches and the other didn't rebase without conflicts while this one did. So fine to have this one open I guess.

[HILAYTRIVEDI]

Thank you @stokesman , I closed the previous pull request.

[stokesman]

I've tested and it works as intended. LGTM! Disclaimer: I fixed one thing and made a couple of quality/style changes besides.

[stokesman]

My confidence in this is high so unless anyone chimes in with a reason not to I think I'll merge it soon. CC @Mamaduka.

[Mamaduka]

The changes look good to me. Thank you, @HILAYTRIVEDI and @stokesman.