Settings: fix a few color picker inconsistentcies

Don't assume we can pulse when calling setAllValues().

Don't display both on/off pulse values when it cannot pulse.

Default to Always on when we can't pulse.

Ref: CYNGNOS-403
Change-Id: Ie356cdc35cb545dd51896697f89ef265ada1147f
Signed-off-by: Roman Birg <roman@cyngn.com>
(cherry picked from commit 9c2c01b5)