Fixes #9530

Note: This branch is based on #9765.
Merge instructions

0. Review this PR
1. Review and merge Add loading skeleton for compact items in posts list #9765
2. Update the target branch to feature/post-filters-compat-view-toggle
3. Review and merge this PR

Fixes design issues on the post list screen as requested in #9530 (comment) and fixes design issues for the post list items compact layout

Screenshots https://cloudup.com/isuSw0gKTf9

• Replaced nested relativeLayouts with ContraintLayout and fixed several design issues in a6bc513, 3da04bc and 8eb8ff5

• The divider for the compact view should be 1dp - Fixed in 76df211

• use roboto/sans-serif for card labels. Card labels include: timestamps, post state labels (Local Changes, Private, Pending review etc.) - Fixed in c156edc

• Increase padding on the right side of the author selection menu. The value used should be 24dp. - This is fixed in Issue/udpate author location #9697

• Remove "W" list footers. We need to make sure we keep enough space on the base of the list to make sure the FAB is not covering any content as well. - Fixed in 79016b8, 5034654 and c6d1e9b

• Adjust the body text line height/spacing to match the reader cards - c156edc

• Copy: Change binned to trashed on "Trash" tab empty state - Fixed in 111e4d0

• ❓ Remove bottom margin from progress bar, the progress bar should sit flush to the bottom of the card - The padding is added there by the system and I can't think of an easy not-hacky solution.

To test:

1. My Site
2. Post List
3. Change view layout type by tapping on the action in the Toolbar
4. Click on Drafts tab
5. Click on Publish button on one of the items
6. Verify the "uploading item" looks as in the screenshot
7. Scroll to the bottom and make sure the FAB doesn't cover any content
8. Click Trashed tab
9. Either switch to a site with no drafts or delete all the drafts
10. Make sure the empty view says "You don't have any trashed posts"

Update release notes:

• The feature hasn't been released yet.