chore(npm): upgrade outdated modules

Before: `npm outdated`

```
Package                         Current          Wanted          Latest  Location
@material-ui/core                 3.0.1           3.1.1           3.1.1  react-fiber-experiments
@material-ui/lab         3.0.0-alpha.14  3.0.0-alpha.17  3.0.0-alpha.17  react-fiber-experiments
@reach/router                     1.1.1           1.2.1           1.2.1  react-fiber-experiments
commander                        2.15.1          2.18.0          2.18.0  react-fiber-experiments
cross-env                         5.1.5           5.2.0           5.2.0  react-fiber-experiments
enzyme                            3.5.0           3.6.0           3.6.0  react-fiber-experiments
enzyme-adapter-react-16           1.3.1           1.5.0           1.5.0  react-fiber-experiments
eslint-config-airbnb             16.1.0          16.1.0          17.1.0  react-fiber-experiments
eslint-config-prettier            3.0.1           3.1.0           3.1.0  react-fiber-experiments
eslint-plugin-prettier            2.6.2           2.7.0           2.7.0  react-fiber-experiments
husky                            0.14.3          0.14.3           1.0.1  react-fiber-experiments
jest-dom                         1.12.0          1.12.1          1.12.1  react-fiber-experiments
lint-staged                       7.1.2           7.3.0           7.3.0  react-fiber-experiments
moment                           2.22.1          2.22.2          2.22.2  react-fiber-experiments
prettier                         1.14.2          1.14.3          1.14.3  react-fiber-experiments
react                            16.5.0          16.5.2          16.5.2  react-fiber-experiments
react-dom                        16.5.0          16.5.2          16.5.2  react-fiber-experiments
react-testing-library             5.0.0           5.1.0           5.1.0  react-fiber-experiments
serve                            10.0.0          10.0.2          10.0.2  react-fiber-experiments
```

After: `npm outdated`

```
Package               Current  Wanted  Latest  Location
eslint-config-airbnb   16.1.0  16.1.0  17.1.0  react-fiber-experiments
husky                  0.14.3  0.14.3   1.0.1  react-fiber-experiments
```