fix: geothermal generators affected by sandstorm when indoors

fix: remove limitation to having 'water freezes' mod to remove sand from water

fix: sand not checking validity and removing itself on invalid cells when at 100% sand

chore: give distinct names to all sandstorm patch files
mod integration: Mashed's Ashlands

feat: settings to configure sand buildup/removal rate

chore: update modicon logic

chore: add 1.5 mod icon

update: 1.5 support

fix: detect coolers via placeworker to allow compatibility for Replace Stuff mod

potential fix: NRE when pawns try to consume NULL plants