Remove obsolete canvas panel focus mode

crates/oa-desktop/src/behavior/canvas_workspace.rs

@@ -52,7 +52,9 @@ pub fn controls<'a>(
         text(format!("{:.0}%", scale * 100.)).size(12),
         control("ZoomIn", "+", Some(zoom(Some(scale * 1.25)))),
         control("ActualSize", "100%", Some(zoom(Some(1.)))),
-    ].spacing(4).align_y(iced::Center);
+    ]
+    .spacing(4)
+    .align_y(iced::Center);
     tooltip(
         controls,
         container(text("F6: enter/leave canvas keyboard controls · Tab: next · Enter/Space: activate · Esc: leave").size(12)).padding(7).style(crate::style::card),
@@ -125,7 +127,6 @@ pub enum Event {
     CancelGesture,
     Pan(Vector),
     Zoom { factor: f32, at: Point, base: f32 },
-    Focus,
     Traverse(bool),
     ControlFocus(&'static str),
     ToggleFocus,