refactor: remove prepareForVisualRegression wrapper in favor of waitForVRTReady

Co-authored-by: arii <342438+arii@users.noreply.github.com>

Author: Copilot

tests/playwright/lib/index.ts

@@ -151,7 +151,6 @@ export {
   // Screenshot helpers
   takeScreenshot,
   takeDashboardScreenshot,
-  prepareForVisualRegression,
   assertFixedDimensions,
   waitForVRTReady,
 } from './visual'

tests/playwright/lib/visual.ts

@@ -217,12 +217,3 @@ export async function takeDashboardScreenshot(
   })
 }
 
-/**
- * Prepares a page for visual regression testing by waiting for fonts to load.
- * This helps prevent flaky tests caused by font rendering shifts.
- *
- * @param page - The Playwright Page object to prepare.
- */
-export async function prepareForVisualRegression(page: Page): Promise<void> {
-  await waitForVRTReady(page)
-}