[STYLE] Implement new chat tools UI (#1835)

* implement new chat tools ui + bump phosphor icons package for new icons

* move TTS button below user image/fix styling

* Show tools on hover
update package deps

* patch styles for desktop

* fix more actions tooltip and disable hide/show on hover for mobile

* z-index on mobile patch

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Co-authored-by: timothycarambat <rambat1010@gmail.com>