The enum changes should work on PyQt 5.x, and are required in PyQt 6.x.
They are not supported by the PyQt5 typings however, so we need to run
our tests with PyQt6.
Means URLs like :/icons/foo.jpg should become icons:foo.jpg
This is part of the prep work for a PyQt6 update. PyQt6 has dropped
pyrcc, so we can longer generate the icons_qrc.py file we did previously.
Qt Designer expects us to use the resource system, so we continue to
generate the icons.qrc file to make editing the UI files easier. But at
runtime, we no longer use that file.
Also:
- fix issues where the Undo action in the Browse screen was not
consistent with the main window. The existing hook signature has been
changed; from a snapshot of the add-on code from a few months ago, it
was not a hook that was being used by anyone.
- change the undo shortcut in the Browse window to match the main
window. It was different because undoing a change in the editing area
could accidentally trigger an undo of an operation, but the damage is
limited now that (most) operations can be redone. If it still proves to
be a problem, perhaps we should just always swallow ctrl+z when an
editing field is focused.
- moved 'default to current deck when adding' into prefs
- move some profile options into the collection config, so they're
undoable and will sync. There is (currently) no automatic migration
from the old profile settings, meaning users will need to set the
options again if they've customized them.
- tidy up preferences.py
- drop the deleteMedia option that was not exposed in the UI
- Rework V2 upgrade so that it no longer resets cards in learning,
or empties filtered decks.
- V1 users will receive a message at the top of the deck list
encouraging them to upgrade, and they can upgrade directly from that
screen.
- The setting in the preferences screen has been removed, so users
will need to use an older Anki version if they wish to switch back to
V1.
- Prevent V2 exports with scheduling from being importable into a V1
collection - the code was previously allowing this when it shouldn't
have been.
- New collections still default to v1 at the moment.
Also add helper to get map of decks and deck configs, as there were
a few places in the codebase where that was required.
