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

fix: input

chore: code cleanup

chore(part): part fix #1

chore: fix gravity

chore: fix more things

fix: parts

feat: drag

chore(fmt): format

chore(lint): pass clippy & enable extra lints

feat(netcode): aeronet

chore(lint): lint/format

player input

gravity