Make it possible to cancel the search.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Make search bars the same color as Apple’s.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Change so the search bar is hidden by default.

- That is, in the questions table view.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>