[Git] Minor graphical issues with new ID layouts

[rexorcorum]

• no floor tiles in void/rift (nor starfield)
• autumn and winter forest can use some other trees except of just elms
• rocks (doors) in underground are using the old underground floor tile, but the rest is gloomy_floors
  
  
• the multiple cells cave maps are using rocks instead of cave door tiles

Will update the list if I see new ones.