fix(feed): Allow to focus Article Editor by clicking the placeholder

[WaDadidou]

Actually, when the user clicks on "Type message here", it does nothing.
It's just a placeholder, so we expect that focuses the editor, and lets the user type.

This weird behavior is due to the fact placheloder from draft-js Editor is a div

So I added a TouchableWithoutFeedback that focuses the Editor when onPress

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[n0izn0iz]

LGTM

[MikaelVallenet]

LGTM, i don't get 100% percent why the placeholder is not a props of the editor/input, but looks fine to me to add a TouchableWithoutFeedback to fix the behavior