coordinate space math fixes, got resize handles working in settings menu prototype

will eventually lift to its own generic widget

I still need to implement the corner resize..

code/env.odin

@@ -202,6 +202,9 @@ State :: struct {
 	// the screen-space UI and the current workspace UI.
 	// This is used so that the ui api doesn't need to have the user pass the context every single time.
 	ui_context : ^UI_State,
+
+	// The camera is considered the "context" for coodrinate space operations in rendering
+	cam_context : Camera,
 }
 
 get_state :: proc "contextless" () -> ^ State {