chore: Make KeyboardLayer non-selectable by default

Author: ids1024

src/application/keyboard.rs

@@ -359,7 +359,10 @@ impl Keyboard {
                 }
             }
 
-            let keyboard_layer = KeyboardLayer::new(page, self.board().clone());
+            let keyboard_layer = cascade! {
+                KeyboardLayer::new(page, self.board().clone());
+                ..set_selectable(true);
+            };
             self.bind_property("selected", &keyboard_layer, "selected")
                 .flags(glib::BindingFlags::BIDIRECTIONAL)
                 .build();

src/application/keyboard_layer.rs

@@ -28,13 +28,6 @@ impl ObjectSubclass for KeyboardLayerInner {
     const NAME: &'static str = "S76KeyboardLayer";
     type ParentType = gtk::DrawingArea;
     type Type = KeyboardLayer;
-
-    fn new() -> Self {
-        Self {
-            selectable: Cell::new(true),
-            ..Self::default()
-        }
-    }
 }
 
 impl ObjectImpl for KeyboardLayerInner {

src/application/main_window.rs

@@ -243,7 +243,6 @@ impl MainWindow {
         };
         let keyboard_layer = cascade! {
             KeyboardLayer::new(Page::Keycaps, keyboard.board().clone());
-            ..set_selectable(false);
             ..set_halign(gtk::Align::Center);
         };
         let keyboard_box = cascade! {