Tweak question metadata shadow.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Fix shadowing a local variable warning.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Refactor show ask a question view.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Change reply bar button item to use reply symbol.

- I got confused since it was the same icon as ask a new question.
Though that tapping that button would also allow me to ask a question,
now it should hopefully be more clear what it is supposed to do.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Move setting the question right bar button item to correct method.

- Should be set once when the view has been loaded instead of every time
we change to the show the view controller.

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