Log Message:
py-prompt_toolkit2: updated to 3.0.4

3.0.4:

New features:
- Added many more vt100 ANSI sequences and keys.
- Improved control/shift key support in Windows.
- No Mypy errors in prompt_toolkit anymore.
- Added `set_exception_handler` optional argument to `PromptSession.prompt()`.

Fixes:
- Bugfix in invalidate code. `PromptSession` was invalidating the UI
  continuously.
- Add uvloop support (was broken due to an issue in our `call_soon_threadsafe`).
- Forwarded `set_exception_handler` in `Application.run` to the `run_async` call.
- Bugfix in `NestedCompleter` when there is a leading space.

Breaking changes:
- `ShiftControl` has been replaced with `ControlShift` and `s-c` with `c-s` in
  key bindings. Aliases for backwards-compatibility have been added.