Bugfix/2075

[svalencia014]

Resolves #2075

The purpose of this pull request is to fix southern arrivals which previously spawned at 11,000, making the controller provide vectors for the descent.
This changes those aircraft to spawn at 6,000 for the jets, and 5,000 for the props (for separation), per the vZJX DAB SOP ("F11 TRACON will assign
arrival aircraft to cross the TRACON border at no higher than 6,000").
higher than 6,000’."

(closed #2076 due to branch being renamed to follow proper naming)

[render]

Your Render PR Server URL is https://openscope-develop-pr-2086.onrender.com.

Follow its progress at https://dashboard.render.com/static/srv-cfvc45seoogsgno1mo20.

[Fechulo]

I think it'd be better to make use of the commands key to ensure aircraft enter the TRACON at 6000ft, rather than forcing them to spawn at 6000ft. (See https://github.com/openscope/openscope/blob/develop/documentation/spawnPatternReadme.md)

It may still be necessary to decrease the spawn altitude, but aircraft should ideally spawn at a higher level and then descend to the desired level

[svalencia014]

Testing my change, I still have a plane spawning at 11,000 when I set altitude back to 23,000 and use the cross MALET A060 command in the file.

[Fechulo]

Try setting the spawn altitude to something like 18,000. If that still doesn't work then I'm happy setting the spawn height to 6k.

[svalencia014]

The first plane that spawns on the FOBIN.Q93.MALET..OMN route still spawns at 11,000. All planes past the initial one on that route spawn normally and descend as instructed.

[Fechulo]

Alright, must be something to do with the first spawn logic. We can keep it at 6000 then

[Fechulo]

This reads much better now, good work!