[Raised in this comment](https://phab.comm.dev/D5324#157721), during work on this [ENG-843](https://linear.app/comm/issue/ENG-843)
Removes the hover tint from buttons in the relationship tab in chat settings, to make it more consistent with relationship buttons displayed at the top of the chat.
Visual changes: (I couldn't capture the cursor, so just know that the cursor in both pictures is hovering over the green button)
Before:
{F195779}
After:
{F196051}