Lint errors in `v1`

[baumstern]

There are some errors when running npm run lint :

✖ 78 problems (48 errors, 30 warnings)
[138](https://github.com/privacy-scaling-explorations/maci/runs/6813608717?check_suite_focus=true#step:5:139)
  38 errors and 0 warnings potentially fixable with the `--fix` option.

• full lint logs