- Fix wrong values for books opened (or first opened)
from April 14th to May 20th: highlights and notes
possibly being NULL was preventing nb of pages and
last_open from being fetched.
- Re-order current book and all books stat items to some
hopefully more sensible order.
- Some rewording for clarity.
KeyValuePage:
- Have value_overflow_align="right" only align right
when value overflows 1/2 screen width, but not
when only key overflows that.
- Show truncated text also on Tap when there is no
callback.