implemented generic tests for config based test flow creation

tests/playwright/playwright.svelte.config.ts

@@ -1,4 +1,4 @@
-import { defineConfig, devices } from '@playwright/test';
+import { defineConfig } from '@playwright/test';
 import { sharedConfigWithPort } from './playwright.shared.config';
 
 const port = 5173;
@@ -6,7 +6,7 @@ const port = 5173;
 export default defineConfig({
   ...sharedConfigWithPort(port),
   webServer: {
-    command: 'cd ../../examples/svelte && pnpm run dev',
+    command: 'cd ../../examples/svelte && pnpm run dev --port 5173',
     port: port,
     reuseExistingServer: !process.env.CI,
   },