-Adding the margin for bottom at dialog
-Modify the text color of summay in the list at dialog when device is
dark mode.
Bug: 212396431
Test: build pass and check the dialog UI.
Change-Id: I1ec587fd9d64ad67bbf3479c7931c0a901f572cf
Merged-In: I1ec587fd9d64ad67bbf3479c7931c0a901f572cf