added icons to the `TooltipItem` component. The five options of the `TooltipItem` are copy, reply, report, creae sidebar and open sidebar. Once we have the icons, we will convert the tooltip into the toolbar.
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Linear Task: [[ https://linear.app/comm/issue/ENG-1541/move-message-tooltip-actions-to-the-bottom-to-make-space-for-reactions | ENG-1541 ]]