Story 1030: Clean up toggle.less

Also, clean up typography.less a bit more.

Margin and padding in pageactions.less adjusted after changing headings
line-height from pt to unitless (1.3).

Fix for bug 36196 removed because I can't reproduce it.

Change-Id: I93758deb5f117957578082214da41cd587893650
Merge "Story 1030: Clean up toggle.less"