[TP] Fix digital clocks in clock carousel

1. Modify the view size of the clock carousel to make it same as the
   screen preview
2. Choose a proper ratio for the text size for text view clocks

Test: Manually tested that the text clocks are showing
Bug: 262924055
Change-Id: I06220c4f10dc4b7b475efe5471dcf19a94a4ce82