Fix rubocop issues and browser test CHROME_PATH

.github/workflows/main.yml

@@ -30,6 +30,9 @@ jobs:
   browser-tests:
     runs-on: ubuntu-latest
 
+    env:
+      CHROME_PATH: /usr/bin/google-chrome
+
     steps:
     - uses: actions/checkout@v4
     - name: Set up Ruby