Various fixes, and a few quality of life improvements — Phobos Steam update #350152

- You can now push/swap other players in non-PVP areas. Let us know how this impacts the issues with people blocking narrow passages (and whether it creates any new problems as well!) - Diagonal movement is now allowed by holding WASD, arrow, or numpad keys, and it is glorious - Removed old auto-updater code, since it was causing issues with Microsoft Windows Defender - Bug in Shrachlor damage fixed - Fixed bugged sign in Mirai's Cemetary of the Nameless - Hill Giant physical defense reduced from 350 => 300 - Hill Giant HP increased from 2700 => 3000 - NPC Flynn in Driftop now buys distance weapons - Corrected Boots of Nieanah item name - Fixed 2 server-crashing bugs