Part of a stack of diffs to fix the timestamp bug, related Linear issue [[ https://linear.app/comm/issue/ENG-1266/timestamp-appears-below-chatinputbar-on-web | here ]].
This diff moves the timestamp tooltip below the message tooltip (with the reply and create thread buttons). Handling other front-end changes like color will be handled in subsequent diffs in this stack, this diff is just focused on aligning the tooltip correctly.