style: make more consistent styles

style: make more consistent styles

- Fix indentation in places
- User settings have better labels
- Lab info title now the same as others
- Add "empty" sections to be more helpful to the user. They are not
using links, since most of the "workflow" is handled by javascript.
- Update padding in places to better line up with other elements
- Add padding to bootstrap notifications (add check for messages to not
just have random padding on the top of the page)
- Remove unnecessary text in a form
- Remove card-body from table-only or list-only cards (lists and tables
are now flush with cards)
- Add bg-danger to not-working hosts
- Replace True/False text shown to the user with Yes/No
- Remove ":" from some headers
- Vertical buttons are now in a button group
- Add pre-wrap class to avoid pre from breaking box sizing on the
booking detail page
- Reduce table indent in pod card and add table overflow scrollbar

Signed-off-by: Jeremy Plsek <jeremyplsek@gmail.com>
Change-Id: If09dca2f2b7386c44eeeb817ef76e8f748e456da