Translate the icon labels in TPAC

Instead of just using English.

Also, in the event we have a search_label, use it.

Signed-off-by: Thomas Berezansky <tsbere@mvlc.org>
Signed-off-by: Ben Shum <bshum@biblio.org>
Stamping 0850 - translate icon labels

Signed-off-by: Ben Shum <bshum@biblio.org>