emojier: Use ItemDelegate for emojiLabel

Akseli Lahtinenrequested to merge
work/akselmo/show-emoji-focus-rectangle into master

Using ItemDelegate for emojiLabel lets us use the default highlighting across all the delegates. We then set the highlight on with GridView.isCurrentItem.

The bug was not that the focus didn't work, it was that the focus was not indicated properly.

image

CCBUG:491028

Edited by Akseli Lahtinen

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