feat: add enable/disable toggle for chore scheduling in ScheduleModal

- Introduced a toggle button to enable or disable chores in the scheduler.
- The toggle will be available in both types of schedulers.
- Added UI design proposal and considerations for mobile dimensions.
- Included E2E tests to ensure toggle state persistence and correct behavior in child view.

frontend/vue-app/e2e/mode_parent/user-profile/profile-editing.spec.ts

@@ -57,7 +57,10 @@ test.describe('User Profile – editing', () => {
 
   test('Back button navigates back', async ({ page }) => {
     await page.goto('/parent')
-    await page.goto('/parent/profile')
+    // Navigate in-app via the profile dropdown so Vue Router has a real history entry.
+    await page.getByRole('button', { name: 'Parent menu' }).click()
+    await page.getByRole('menuitem', { name: 'Profile' }).click()
+    await expect(page).toHaveURL('/parent/profile')
 
     await page.getByRole('button', { name: 'Cancel' }).click()