feat: avian!

Merge branch 'core/rewrite-it-all-again-lmao' into 'master'

unified

See merge request starkingdoms.tk/starkingdoms.tk!5

chore(fmt,lint): pass clippy

chore: code cleanup

chore(part): part fix #1

more insanity

particles are back (cmon git)

fix: missing clamps

feat?: the worst particle editor of all time

fix: make it compile :p

fix: new LifetimeCurve for peffect