renderer mailbox, focus message

src/renderer/State.zig

@@ -12,9 +12,6 @@ const renderer = @import("../renderer.zig");
 /// state (i.e. the terminal, devmode, etc. values).
 mutex: *std.Thread.Mutex,
 
-/// True if the window is focused
-focused: bool,
-
 /// A new screen size if the screen was resized.
 resize_screen: ?renderer.ScreenSize,