fix(inline recs): Crash when no existing div.ars

[jesus2099]

I noticed that this userscript relies on mb_INLINE-STUFF to run properly.

Example release with no AR, no AcoustID and no ISRC (quick! it is being removed!)
https://musicbrainz.org/release/1f3a402f-7265-42ea-803a-f3cf8c508e7c

Or any other releases with credits at bottom and no mb_INLINE-STUFF running
https://musicbrainz.org/release/b4e8f7f4-e35c-42eb-a043-9605e4784aff

[jesus2099]

I don't understand why my PR fails a test.
Initially, my commit was called fix: Crash when no existing div.ars and it failed no tests.
Then I renamed it to fix(inline recs): Crash when no existing div.ars and now it fails the codecov/project test. 🤔

[jesus2099]

Initially I forked repo to see if I could exclude current track from the inline track list.
I felt the current track* should not be displayed twice…
Then I found this problem. :D

Also I thought inline track list should be ordered, at least alphabetically (including the medium.track numbers).

* Current track, not current recording. As some releases have the same recording on several tracks.

[jesus2099]

BTW I just noticed that that release had tracks with both span.mp and span.name-variation.
Those tracks are skipped as only one level of span is handled.
I added another commit.

[kellnerd]

I don't understand why my PR fails a test.

No worries, it is the latest commit in main which is currently failing the code coverage test (because a few Discogs tests had to be disabled temporarily).

[ROpdebee]

Thanks for the fixes!

[jesus2099]

@ROpdebee, you forgot the mb_qol_inline_recording_tracks label, that you can also add to #764.