[TP] Handle quick update from slider

When sliding, the color updates are frequent. We do not allow quick
updates to the settings. So we will handle the color changes at the UI
level.

1. Replace the clock preview on the lock screen with an overlay clock
   view
2. Implements the frequent color updates to the view

Test: Manually tested that the view quickly respond to the slider
Bug: 270097085
Change-Id: Ib78058d0dabaeea8cdbe1eed4516ecf02c76b904