More fission fixing

[CrazyAmphibian]

[tweak] [bugfix]

What this does

closes #37450
addresses more feedback in other regards, too.
adds variable lighting to active reactors
fixes some linter warnings
see the 🆑.

Why it's good

makes life easier. cool stuff.

How it was tested

booted into game, stuff worked.

Changelog

🆑

• tweak: Nanotrasen's engineering team has discovered a new reactor construction technique that is both faster and uses fewer resources, and has passed the savings onto the crew!
• rscadd: Reactors now emit light while active
• bugfix: Reactor girders will no longer have incorrect names or icons.
• bugfix: The reactor UI no longer mixes up coolant and reactor temperature.
• bugfix: fixed some issues with overlapping reactor construction steps
• tweak: Reactor girders now change appearance with construction a bit
• tweak: Reactor girders at their final construction step (before welding) can now be wrenched to move them around.