Remove unnecessary slice()

Signed-off-by: Juho Heikka <juho.heikka@gmail.com>

src/main/menu/electron-menu-items.injectable.ts

@@ -29,8 +29,7 @@ const electronMenuItemsInjectable = getInjectable({
     const extensions = di.inject(mainExtensionsInjectable);
 
     return computed(() =>
-      extensions.get().flatMap((extension) => extension.appMenus.slice()),
-    );
+      extensions.get().flatMap((extension) => extension.appMenus));
   },
 });
 

src/main/tray/tray-menu-items.injectable.ts

@@ -29,7 +29,7 @@ const trayItemsInjectable = getInjectable({
     const extensions = di.inject(mainExtensionsInjectable);
 
     return computed(() =>
-      extensions.get().flatMap(extension => extension.trayMenus.slice()));
+      extensions.get().flatMap(extension => extension.trayMenus));
   },
 });