Can't change the page locale to en-GB while editing an add-on in ATN

[marcoagpinto]

Heya, @Sancus

Here is the ticket about it:
webcompat/web-bugs#124629

It was you who told to file the bug report here.

Thanks!

Describe the problem and steps to reproduce it:

(Please include as many details as possible.)

What happened?

What did you expect to happen?

Anything else we should know?

(Please include a link to the page, screenshots and any relevant files.)

[marcoagpinto]

@Sancus

Andrei, here is a video of the issue (screen captures):

ATN_GB_issue_20230718.mp4