feat: shortcut for clearCanvas confirmDialog (#6114)

Co-authored-by: dwelle <luzar.david@gmail.com>
resolve https://github.com/excalidraw/excalidraw/issues/5818

src/actions/actionDeleteSelected.tsx

@@ -154,7 +154,9 @@ export const actionDeleteSelected = register({
     };
   },
   contextItemLabel: "labels.delete",
-  keyTest: (event) => event.key === KEYS.BACKSPACE || event.key === KEYS.DELETE,
+  keyTest: (event, appState, elements) =>
+    (event.key === KEYS.BACKSPACE || event.key === KEYS.DELETE) &&
+    !event[KEYS.CTRL_OR_CMD],
   PanelComponent: ({ elements, appState, updateData }) => (
     <ToolButton
       type="button"

src/actions/shortcuts.ts

@@ -8,6 +8,7 @@ export type ShortcutName =
       ActionName,
       | "toggleTheme"
       | "loadScene"
+      | "clearCanvas"
       | "cut"
       | "copy"
       | "paste"
@@ -41,6 +42,7 @@ const shortcutMap: Record<ShortcutName, string[]> = {
   toggleTheme: [getShortcutKey("Shift+Alt+D")],
   saveScene: [getShortcutKey("CtrlOrCmd+S")],
   loadScene: [getShortcutKey("CtrlOrCmd+O")],
+  clearCanvas: [getShortcutKey("CtrlOrCmd+Delete")],
   imageExport: [getShortcutKey("CtrlOrCmd+Shift+E")],
   cut: [getShortcutKey("CtrlOrCmd+X")],
   copy: [getShortcutKey("CtrlOrCmd+C")],