feat: command palette (#7804)

Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>

excalidraw-app/components/AppMainMenu.tsx

@@ -20,7 +20,7 @@ export const AppMainMenu: React.FC<{
           onSelect={() => props.onCollabDialogOpen()}
         />
       )}
-
+      <MainMenu.DefaultItems.CommandPalette />
       <MainMenu.DefaultItems.Help />
       <MainMenu.DefaultItems.ClearCanvas />
       <MainMenu.Separator />

excalidraw-app/components/TopErrorBoundary.tsx

@@ -67,6 +67,8 @@ export class TopErrorBoundary extends React.Component<
 
     window.open(
       `https://github.com/excalidraw/excalidraw/issues/new?body=${body}`,
+      "_blank",
+      "noopener noreferrer",
     );
   }