Patch notes for v0.8.1a

Improved recipe matching for machine copy-paste to correctly handle overclocked recipes and prefer similar recipes across compatible machine types. * Battleships now notify when they cannot reach the world. * Battleships and cargo ships now show a more stable status when unable to reach the world instead of flickering between states. * Optimized train track blueprint and paste placement, reducing large stuttering when moving many track previews. * Optimized pole and pillar generation for train tracks (up to 4.5x faster for large placements). * Fixed that amphibious vehicles would disrupt terrain on the ocean floor under the water. * Fixed that ships could reverse after leaving docks. * Fixed exhaust on all excavators not rotating correctly with the vehicle. * Fixed ocean area recovery requiring incorrect depth threshold. * Fixed billboard and gold furnace layouts. * Fixed locomotive tooltip showing incorrect fuel consumption when vehicle fuel edicts were active. * Fixed that the Everything toolbar tab would not work properly in the Buildings menu.