add ci=false to have warnings not count as errors

Author: eivindkopperud

.github/workflows/lint.yml

@@ -30,10 +30,10 @@ jobs:
      run: npm run prefrontend && npm run prebackend
 
    - name: Build frontend
-     run: cd frontend && npm run build
+     run: cd frontend && CI=false npm run build
 
    - name: Build backend
-     run: cd ../backend && npm run build
+     run: cd ../backend && CI=false npm run build
 
    - name: ESLint
      run: npm run eslint