fix dialog size issue in deckconf
don't hide hr in preview when not type answer card
can't assign tuple to bs attrs without breaking later code
replace implicit styling at the top, and catch style missing case
add a hack to prevent double newlines when deleting formatting

prior to this change, if you entered an empty field, turned on bold,
typed some text, and then backspaced over the text, it would expand
to two lines and the formatting would not go away
when media deleted during sync, move to trash instead of deleting
move unused media to trash too
send to trash when deleting profile
send old backups to trash as well
allow font sizes > 20 in browser (#492)
require consecutive match when filtering (#786)
shortcut key for history button