fix(tui): mouse wheel ansi codes leaking into editor

packages/tui/input/focus.go

@@ -0,0 +1,9 @@
+package input
+
+// FocusEvent represents a terminal focus event.
+// This occurs when the terminal gains focus.
+type FocusEvent struct{}
+
+// BlurEvent represents a terminal blur event.
+// This occurs when the terminal loses focus.
+type BlurEvent struct{}