ui: use `Label` widget for graphics options labels #261

Job	Run time
miri	1m 31s
build (ubuntu, stable, locked, true)	11m 41s
no_std	30s
build (windows, stable, locked, false)	24m 14s
build (macos, stable, locked, false)	25m 5s
build (ubuntu, nightly, locked, false)	11m 53s
build (ubuntu, beta, locked, false)	13m 30s
build (ubuntu, stable, latest, false)	13m 39s
build (ubuntu, stable, minimal, false)	14m 12s
deploy	8s
features	26m 1s
fuzz	15m 5s
	2h 37m 29s

Provide feedback