removed LEFT/RIGHT increment/decrement while
the card database/quicksearch edit have focus.
LEFT/RIGHT increment/decrement remains while the
deck view has focus.
also, now the card database delegates focus the
quicksearch editor so that any characters typed
while the card database has focus will narrow
the search down using the quicksearch filter.
`control`+`alt`+`-`/`=` now increment/decrement
the mainboard and `control`+`alt`+`[`/`]` now
increment/decrement the sideboard (alt could not
be used alone as OSX inserts special characters
using alt.
The global shortcuts were removed in favor of key events
which are only triggered when a widget has focus. This is
necessary to allow different widgets to react differently
to the 'enter' key. The current key configuration is:
search edit focused:
* left/right: decrease/increase card count for selected database card
* enter: add selected card to deck
* ctrl-enter: add selected card to deck sideboard
* ctrl-left/right: decrease/increase card count in sideboard for selected card
database focused: the same as with search edit.
deckview focused:
* left/right: decrease/increase card count for selected deckview card
* enter: increase count for selected deckview card
* delete/backspace: delete selected card from deck
