[Autofill] Update Autofill popup according to mocks

Notably, "Chrome Autofill settings..." is back and the padding is much less severe.

Also, the values are bolded.

BUG=567755
TEST=manual

Review URL: https://codereview.chromium.org/1654463002

Cr-Commit-Position: refs/heads/master@{#372552}
6 files changed