- Update to 2.5.1:
* Extend Command enum and update Columns & Pile
* Fix double Widget inheritance in the LineBox
* Columns PACK item not fit as FIXED and support FLOW
* allow not subclassed incomplete widgets in Columns/Pile
* Columns rendered with a non-first Selectable widget should not skip
other items
* Fix regression: Columns render incorrect BOX/FLOW widgets height
* Overlay typing and proper repr
* support proper repr and str for Canvas
* Support FIXED and FLOW operations for Overlay depends on options
* Columns accept focus widget as "focus_column"
* Filler can act as FLOW widget
* allow explicit focus in GridFlow constructor
* Columns support correct BOX render only if ALL BOX
* support FIXED-only widgets and FIXED rendering for Columns
* Support FIXED-only widgets and FIXED rendering for PILE
* support FIXED render type for GridFLow
* Add run_in_executor helper to the event loop
* Feature: Implement keypress and mouse_event default handlers
* use Hashable for signal identifier types
* Introduce optional dependencies for package
* Feature: Support pack() for CheckBox/RadioButton/Button
* Fix font in case Font.data is str
* Fix: deep TextEnum was improperly resolved
* Fix #583: python 3.12 compatibility
* Python 37+ migration, Python < 3.7 support dropped
* make tests compatible with Python 3.11
* Add two fonts based on Unicode 13 2x3 TRS-80/Teletext mosaic characters
* Fix assertion failure when string contains SO but not SI