v6.4 Spawn Zone Blocks!

-ADDED spawn zone blocks, spawning avatars will randomly pick a block to spawn at.
-ADDED block x,y offset and transparency slider
-ADDED application target FPS under General> (performance optimization)
-ADDED custom pinned image setting
-ADDED pinned struggle toggle setting 
-ADDED pinned duration setting
-ADDED plane height option.

-CHANGED Reworked block tool options to add new block types easier.
-CHANGED Block tool will now automatically open the options when clicked.
-CHANGED Workshop panel will retain page and position after downloading an item. 
-CHANGED avatar delete button location 
-CHANGED background levels will now unload and will only load when being used. (ram optimization).
-CHANGED on background level select, avatars will move to spawn locations.
-CHANGED on duel / battleroyale exit, involved avatars will move to spawn locations.

-FIXED Twitch subscription alert, months in a row was deprecated. 
-FIXED UI rescaling when locked and connected. (bug)
-FIXED temporary fix for unity's maximize window bug... when you maximize it will now flicker, adjust window position and size (hopefully to a more correct size)
-FIXED maximize window button moving window position to the primary monitor. (bug)
-FIXED pinned avatar + disconnecting would leave the pin. (bug)