Pygame-menu

- Fixed typing error.
- Fix macOS mixer error.
- Added ``origin_position`` to Widget float, 310.
- Added widgets example to the gallery, 310.

New v4 release

v4 version comes out with many new features. The most important ones are:
- All menu objects now support decorations.
- Colors now can be defined using pygame color object, string hex, integers, or string names.
- Cursor support + mouse over/leave events.
- New column/row layout.
- New examples: Calculator and Solar System.
- New typing support; now the library only supports python 3.6+.
- New widgets: Frame (widget containers), Table, DropSelect, DropSelectMultiple, SurfaceWidget.
- New widget transformations: scale, resize, rotate, flip and translate.

- Fix TextInput widget mods and non-ASCII chars, 297.
- Fix string checking if Unicode.
- Fix typos.

**NOTE: pygame-menu *v3* will not provide new widgets or functionalities, consider upgrading to the latest version.**

- Fix docs, 298.
- Menu now accepts widget id on select and remove, 295.
- Fix typos.

- Improve rect usage on widgets.
- Overflow Menu constructor parameter now accepts a single bool value.
- Fix docs

- Fixed ``Widget`` translation error.
- Fixed mouse click events.