fix: Fix loading-state container reference in loading-states extension

[jozefrebjak]

Description

Applied fix as in 695fd8a for loading-states extension.

Corresponding issue: #2450

Testing

I tested it locally on MacOS M1 Sonoma with Safari 17.4.1

Checklist

• I have read the contribution guidelines
• I have targeted this PR against the correct branch (master for website changes, dev for
  source changes)
• This is either a bugfix, a documentation update, or a new feature that has been explicitly
  approved via an issue
• I ran the test suite locally (npm run test) and verified that it succeeded

[andryyy]

Let me do my part as a good user:

Can this be merged? Why hasn’t this been merged yet? Is the project dead?
Is there a fork? Why are the devs not responding?

Thanks for the fix. :)

[jozefrebjak]

Dear @1cg ,

I would greatly appreciate it if you could review the current PR. Additionally, there are several other PRs specifically addressing issues related to Safari.

Thank you in advance for your time.