Update Playwright configuration to use only Chromium browser

Co-authored-by: GeekTrainer <6109729+GeekTrainer@users.noreply.github.com>

Author: Copilot

client/package.json

@@ -11,7 +11,7 @@
     "test:e2e:ui": "playwright test --ui",
     "test:e2e:debug": "playwright test --debug",
     "test:e2e:headed": "playwright test --headed",
-    "test:e2e:webkit": "playwright test --project=webkit"
+    "test:e2e:chromium": "playwright test --project=chromium"
   },
   "dependencies": {
     "@astrojs/node": "^9.1.3",

client/playwright.config.ts

@@ -27,8 +27,8 @@ export default defineConfig({
   /* Configure projects for major browsers */
   projects: [
     {
-      name: 'webkit',
-      use: { ...devices['Desktop Safari'] },
+      name: 'chromium',
+      use: { ...devices['Desktop Chrome'] },
     },
   ],