refactor: Remove redundant keyboard handlers from crop_overlay widget

Keyboard events (Enter/Escape) are already handled globally in app.rs
subscription and work correctly with Crop mode detection.

Widget-level keyboard events don't work without focus anyway.
Only mouse events (click, drag, double-click) stay in the widget.

src/ui/widgets/crop_overlay.rs

@@ -14,7 +14,6 @@ use cosmic::{
             widget::Tree,
         },
         event::{Event, Status},
-        keyboard,
         mouse::{self, Button, Cursor},
     },
 };
@@ -371,22 +370,6 @@ impl Widget<AppMessage, cosmic::Theme, Renderer> for CropOverlay {
                     return Status::Captured;
                 }
             }
-            Event::Keyboard(keyboard::Event::KeyPressed {
-                key: keyboard::Key::Named(keyboard::key::Named::Enter),
-                ..
-            }) => {
-                if self.selection.has_selection() {
-                    shell.publish(AppMessage::ApplyCrop);
-                    return Status::Captured;
-                }
-            }
-            Event::Keyboard(keyboard::Event::KeyPressed {
-                key: keyboard::Key::Named(keyboard::key::Named::Escape),
-                ..
-            }) => {
-                shell.publish(AppMessage::CancelCrop);
-                return Status::Captured;
-            }
             _ => {}
         }