Planned session start fixed.

tests/workout-plans-start-session-from-plan.spec.ts

@@ -15,7 +15,7 @@ test.describe('II. Workout Management', () => {
     await page.getByRole('button', { name: 'Plans' }).click();
 
     // 3. Create a plan with at least one exercise.
-    await page.getByRole('button').filter({ hasText: /^$/ }).nth(4).click(); // Click FAB
+    await page.locator('.absolute.bottom-6').click(); // Click FAB
     await page.getByRole('textbox', { name: 'E.g. Full-body Routine' }).fill('Start Session Test Plan');
     await page.getByRole('textbox', { name: 'Describe preparation...' }).fill('Test plan for starting a session');
     await page.getByRole('button', { name: 'Add Exercise' }).click();