Address lint errors cast to warnings

[https://github.com/compsigh/web/pull/108/changes#diff-9601a8f6c734c2001be34a2361f76946d19a39a709b5e8c624a2a5a0aade05f2R18-R23](https://github.com/compsigh/web/pull/108/changes#diff-9601a8f6c734c2001be34a2361f76946d19a39a709b5e8c624a2a5a0aade05f2R18-R23)

* `react-hooks/purity`
* `react-hooks/static-components`
* `react-hooks/set-state-in-render`
* `react-hooks/set-state-in-effect`