[Docs] Clarify FluentSelect SelectedOptionsChanged not triggered with manual options (#3670 and #1207)

[pedro-cons]

Clarify FluentSelect SelectedOptionsChanged not triggered with manual options (#3670 and #1207)

📖 Description

This PR improves the documentation of the FluentSelect component by adding a clarification about the SelectedOptionsChanged event.

When using manual options, FluentSelect's internal data structure cannot be reliably updated. Because of that, the SelectedOptionsChanged callback will not be triggered.
This is a known limitation, and we do not foresee changes to this behavior in the short term.

🎫 Issues

Fixes #3670 and #1207

📑 Test Plan

• Validated that the updated note appears correctly in the FluentSelect documentation page.
• Confirmed that no visual or structural issues were introduced.

Updated documentation:

Let me know if you’d like me to include any additional details.

Thanks!

[vnbaaij]

Hi, Thanks for your contribution. Once you accept the CLA, this can be merged in.

[pedro-cons]

@microsoft-github-policy-service agree

[pedro-cons]

Hi, Thanks for your contribution. Once you accept the CLA, this can be merged in.

Hi! I've just accepted the CLA

Thanks!