Urwid

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed
Bug fixes 🕷
* Fix Columns sizing and pack behavior by penguinolog in https://github.com/urwid/urwid/pull/846
Other Changes
* Extend `__repr__` and `rich` repr for the sized containers by penguinolog in https://github.com/urwid/urwid/pull/844


**Full Changelog**: https://github.com/urwid/urwid/compare/2.6.5...2.6.6

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed
Bug fixes 🕷
* Allow `wcwidth` to select unicode version by penguinolog in https://github.com/urwid/urwid/pull/840
* `TreeWidget`: do not use deprecated API in `update_expanded_icon` by penguinolog in https://github.com/urwid/urwid/pull/832
Refactoring 🛠
* Refactoring: move `monitored_list` module to the `widgets` package by penguinolog in https://github.com/urwid/urwid/pull/833
* Refactoring: move `listbox` & `treetools` modules to the `widgets` by penguinolog in https://github.com/urwid/urwid/pull/834
* Use dataclass for symbols constants by penguinolog in https://github.com/urwid/urwid/pull/842
* Special case: in case of `Columns`/`Pile` empty - use fallback sizing by penguinolog in https://github.com/urwid/urwid/pull/843
Other Changes
* Tests: Extend Tree tests: basic keys + nested behavior by penguinolog in https://github.com/urwid/urwid/pull/831


**Full Changelog**: https://github.com/urwid/urwid/compare/2.6.4...2.6.5

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed
Bug fixes 🕷
* Fix regression from 2.6.1: `ListBox` used for tree implementation. by penguinolog in https://github.com/urwid/urwid/pull/829


**Full Changelog**: https://github.com/urwid/urwid/compare/2.6.3...2.6.4

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed
Bug fixes 🕷
* Fix regression from 2.6.2: weight can be `float` by penguinolog in https://github.com/urwid/urwid/pull/827


**Full Changelog**: https://github.com/urwid/urwid/compare/2.6.2...2.6.3

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed
New features 🗹
* Feature: support `Widget` instance as `Frame` focus part in constructor by penguinolog in https://github.com/urwid/urwid/pull/820
* Feature: `EventLoop.run_in_executor` should accept `**kwargs` by penguinolog in https://github.com/urwid/urwid/pull/822
* Feature: extend validation for `Columns` and `Pile` by penguinolog in https://github.com/urwid/urwid/pull/825
Bug fixes 🕷
* Fix: nonstandard display typing issues by penguinolog in https://github.com/urwid/urwid/pull/818
* Fix: Text pack for `layout` without `pack` by penguinolog in https://github.com/urwid/urwid/pull/819
* Fix: `ListBox` render crash if empty elements in tail by penguinolog in https://github.com/urwid/urwid/pull/824


**Full Changelog**: https://github.com/urwid/urwid/compare/2.6.1...2.6.2

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed
Bug fixes 🕷
* Fix a scenario with ellipsis wrap not fit in screen columns by penguinolog in https://github.com/urwid/urwid/pull/813


**Full Changelog**: https://github.com/urwid/urwid/compare/2.6.0...2.6.1