feat: close button in crafting ui

fix: planet sizes doubled to reduce gravity falloff

feat: radiation area

feat: thermal radiation + specific heat

feat: constant cooling and heating from thrusters

feat: crafting ui start

Revert "aaa ??? ?? ? ?? ???????????????????????????????????????????? i would like to explosion"

This reverts commit 0a56ebc381389eb63ab5cb3c3522d9ea2475e9d8.

aaa ??? ?? ? ?? ???????????????????????????????????????????? i would like to explosion

chore: please thy lord clippy

fix: dragging

chore: solver work

fix: orbit prediction actually follows hill spheres

fix: orbit indicator is continuous

fix: orbit indicator is a line

fix: orbit prediction follows hill spheres

Merge branch 'master' of git.srht.e3t.cc:~starkingdoms/starkingdoms

fix: trying to fix gravity

feat: solver optimization (pro tip: do not do io in the hot path)

feat: switch solver

feat: more predictable thrust solver behavior