fix: mark KeyboardExtender enabled props as optional in TS

[kirillzyusko]

📜 Description

Mark KeyboardExtender enabled props as optional in TypeScript.

💡 Motivation and Context

We assign default true value, so it's not a mandatory step to specify this property.

📢 Changelog

JS

• mark KeyboardExtender enabled props as optional in TS

🤔 How Has This Been Tested?

Tested in VSCode.

📸 Screenshots (if appropriate):

Before	After

📝 Checklist

• CI successfully passed
• I added new mocks and corresponding unit-tests if library API was changed

[github-actions]

📊 Package size report

Current size	Target Size	Difference
211557 bytes	211554 bytes	3 bytes 📈