print-management: adjust jelly spacing

- Update header margin-inline to be 32px regardless of screensize.
- Update data area margin and padding to ensure start column align
  with header text.

Spec: http://screen/6McgFo8UQssumoS.png
Screenshot: http://screen/3ZEYFtccqkNqH8a.png

Bug: b:284211847
Test: Manually verify UI.
Change-Id: I07e48646c4a129a98a54dfee9c26a10235b7b6e9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4598272
Reviewed-by: Gavin Williams <gavinwill@chromium.org>
Commit-Queue: Ashley Prasad <ashleydp@google.com>
Cr-Commit-Position: refs/heads/main@{#1154922}