merge unknown shuttle rules into one rule

[lzk228]

About the PR

instead of different rules, there is just one, that will select random shuttles from the list
along with datafield in LoadMapRuleComponent was changed to the list to support randomness

Why / Balance

fixes #28209 fixes #29087

Technical details

Media

2024-07-15_13-33-14.mp4

• I have added screenshots/videos to this PR showcasing its changes ingame, or this PR does not require an ingame showcase

Breaking changes

Changelog

🆑

• fix: Fixed unknown shuttle gamerule appearing too often

[TurboTrackerss14]

So while this is nice for normal round progression.
It would be nice to still be able to select exactly which unknownshuttle spawns as an admin running an event

be admin running syndicate announcements from distance syndicate station
spawn 2-3 unknown shuttle syndicate survivors.
lore

This wouldn't be possible via a simple gamerule command and would need a fair amount more setup.

[deltanedas]

said setup just being loadgrid command

[TurboTrackerss14]

said setup just being loadgrid command

Which isn't logged like addgamerule, which appears to any admins that connect.

[TheShuEd]

This has already been discussed, here we need another solution, unified with the Secret gamemode rule. a rule that allows you to run one of the sub-rules based on weights

[IProduceWidgets]

[#29320] currently waiting on this to merge for the same reasons.