Does your feature request involve difficulty completing a task? Please describe.
High possibility.

Describe the solution you'd like
Easiest option would be to allow different providers.
Hardest option is to implement Yomichan, natively on the app. Seems hard to do on website.

Describe alternatives you've considered
Easiest would be to call for other online dictionaries, like Jisho or Kotobank. You can see a list of dictionaries I've collected here.