Add formatter for html

[lookupdaily]

Currently we have no formatter in place for html files. We could add Prettier for this, but would need to make sure it does not conflict with JavaScript Standard

This would help us to keep our code consistent when editing html files, and reduce formatting changes on changes to existing files (if a developer uses a formatter locally).

There is currently a .prettierignore file which seems redundant. Would be good to remove this, use use it as part of this enhancement.

[yndajas]

Could we just tell it to ignore .js files? Or alternatively switch to Prettier wholesale and drop Standard?

[lookupdaily]

Yep, that's how we've done it on our current project (ignoring js files). If we binned standard, we'd need to use eslint anyway, as they have separate concerns, however standard covers formatting as well as rule checking i believe?

Prettier has guidance on integrating with eslint, but not standard.