A lot of very small layout fixes

1. Remove left margin from table cells in list
2. Make textareas and input[type="text"] look the same (same border same padding)
3. Fix padding on new section page (by adding div class=row to it)
4. On view a manual page:
  - Make url unclickable if the manual isn't published yet
  - Remove "Title" label as I don't think this page needs it
  - Add padding at the top of buttons so when they collapse they aren't touching
  - Add a message saying when the user hasn't added any sections yet so they know they can do that
5. On new section page change labels to "section title", "section summary" etc
6. Change title of new section page to "Add new section" rather than the manual title