- Rework widget layout to avoid implicit (and wrong)
sizing, using proper padding/margins and correct
measurements of components.
- Adjust lookup word font size so it's not smaller
than the definition.
- Tweak small window positionning: keep it centered
if possible, only move it to keep the highlighted
word shown when we can.
- Large window: adjust to screen size correctly,
leaving room for footer.
- Always have a "Close" button at bottom right.
Former always displayed button "Follow link" will
be added as a 3rd row in the rare case we select
a word in a link.
- Replace "tap on lookup word to edit and redo the
query" with an icon on the right: tap on it to
edit the queries word, long-press to edit the
current result word. Only close the current dict
window when lookup is launched.
- Remove feature "tap on title to set current dict
as the default dict for this document", as it didn't
really work, and it was bad UX.
