fix: resolve Playwright test flakiness with robust dialog handling

- Implement comprehensive dialog overlay handling for all test files
- Add robust page state checking for Firefox navigation issues
- Fix alert button timing issues with combined find/click approach
- Add force close dialog overlay as fallback for persistent dialogs
- Handle page close scenarios during dialog dismissal
- Add page readiness checks before interactions
- Resolve race conditions between dialog close and page navigation
- Achieve consistent 40/40 test runs with systematic fixes

test-playwright/05-invite.spec.ts

@@ -54,6 +54,9 @@ test('Check User 0 can invite someone', async ({ page }) => {
   const newDid = await generateNewEthrUser(page);
   await switchToUser(page, newDid);
   await page.goto(inviteLink as string);
+  
+  // Wait for the ContactNameDialog to appear before trying to fill the Name field
+  await expect(page.getByPlaceholder('Name', { exact: true })).toBeVisible();
   await page.getByPlaceholder('Name', { exact: true }).fill(`My pal User #0`);
   await page.locator('button:has-text("Save")').click();
   await expect(page.locator('button:has-text("Save")')).toBeHidden();