30 duplicated lines in:
  - fcm-notifications/public/main.css (17:46, 44%)
  - quickstarts/email-users/public/main.css (17:46, 78%)

9 duplicated lines in:
  - fcm-notifications/public/index.html (23:35, 19%)
  - quickstarts/email-users/public/index.html (23:35, 23%)

6 duplicated lines in:
  - fcm-notifications/public/main.js (16:24, 4%)
  - quickstarts/email-users/public/main.js (16:24, 13%)