Split out mentions box into separate render function / component

[pribeh]

Is it possible to separate the suggestion panel flatlist into another component? It's more than a bit tricky right now to position the mentions box when it's inside the same view as the textinput. I'm attempting to have it sit flush on top of a textinput which has buttons on either end but that doesn't seem to be possible without some sort of position: 'absolute' gymnastics which won't work on android due to overflow issues.