fix husky not running unit tests on pre-commit

[srodrigo]

There is no test command at the moment because the unit tests script is explicitly suffixed with :unit. Husky is trying to run npm test and failing.

anime-suupu/.husky/pre-commit

Line 4 in d6f015c

npm test

echo 'Error: no test specified'

Husky should run npm run test:unit on pre-commit. Although, since #50, the unit testing strategy will blend with "integrated" (not integration) testing, in which case it might be better to remove the :unit suffix.