Move cursor timer to renderer

src/renderer/State.zig

@@ -33,8 +33,4 @@ pub const Cursor = struct {
     /// "blink" settings, see "blink" for that. This is used to turn the
     /// cursor ON or OFF.
     visible: bool = true,
-
-    /// Whether the cursor is currently blinking. If it is blinking, then
-    /// the cursor will not be rendered.
-    blink: bool = false,
 };