[featreq] text reaction writting support

[lavenderdotpet]

cinnyapp/cinny#1462 (ref) (if needed)

yall support displaying them but not writing them it seems

[Airyzz]

you can technically do this by clicking 'reply' to a message, and then using /react

[lavenderdotpet]

ah but u cant do it via the ui

[lavenderdotpet]

cinny does it via having the emoji search bar also being the react text dialog