why I change source in flask_appbuilder folder but it does not work?

[q631599119]

Bug description

why I change source in flask_appbuilder folder but it does not work?

Screenshots/recordings

No response

Superset version

master / latest-dev

Python version

3.10

Node version

18 or greater

Browser

Chrome

Additional context

No response

Checklist

• I have searched Superset docs and Slack and didn't find a solution to my problem.
• I have searched the GitHub issue tracker and didn't find a similar bug report.
• I have checked Superset's logs for errors and if I found a relevant Python stacktrace, I included it here as text in the "additional context" section.

[rusackas]

If you can give us some more details on (a) what you're changing (b) the out come you're hoping for and (c) what's actually happening, we might be able to help. There's not a lot of detail to go on here.