fix: correct width issue caused by tooltip addition in SingleSelect

[mouad-dadda]

Description

a layout issue in the AppSideBar component caused by a recent change to the SingleSelect component. Specifically, when a tooltip for long titles was added to SingleSelect, a width was set that inadvertently disrupted the layout.

Related Tickets & Documents

Fixes #4031

Mobile & Desktop Screenshots/Recordings

Problem :

fixed 💯 :

Steps to QA

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[nickytonline]

One other thing to notw @mouad-dadda is that the plus icon is too dark. It should be the same colour as the top level sidebar menu items.

[mouad-dadda]

Got it, @nickytonline :

[jpmcb]

Approved netlify run, approved GitHub actions, requested engineering review.