[keyboard] fix Chinese character coding issue in keyboard layout

[taxigps]

Description

fix character coding problem with Keyboard layouts Chinese BasePY under windows .

Motivation and context

see: #17168

How has this been tested?

What is the effect on users?

Screenshots (if appropriate):

Types of change

• Bug fix (non-breaking change which fixes an issue)
• Clean up (non-breaking change which removes non-working, unmaintained functionality)
• Improvement (non-breaking change which improves existing functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that will cause existing functionality to change)
• Cosmetic change (non-breaking change that doesn't touch code)
• None of the above (please explain below)

Checklist:

• My code follows the Code Guidelines of this project
• My change requires a change to the documentation, either Doxygen or wiki
• I have updated the documentation accordingly
• I have read the Contributing document
• I have added tests to cover my change
• All new and existing tests passed

[jenkins4kodi]

I've made some formatting changes to meet the current code style. The diffs are available in the following links:

• PR20427-0001-37690e8e8c-keyboard-fix-Chinese-character-cod.diff
• PR20427.diff

For more information please see our current code style guidelines.

[fuzzard]

Similar layout style to the Korean one. I can't really test, so take your word on it working, but doesn't look like there's any troubles with it

[taxigps]

@fuzzard Thanks! I have tested it, it works well.