Update entry icons, animations, and status colors for U specs.

This adds new "small" entry icons and their corresponding animations
(used on the more issues widget).

This also fixes the colors of the status shield to match the visd specs
for U.

Bug: 269731773
Test: manually verified the new icons in QS with both light and dark
theme enabled and in the full page in both light and dark theme.

Change-Id: I2380d23b66f68e63172d527af7cd8050d291317f