[FEATURE REQUEST] Flash card management

[bojtalepenye]

This has already been requested, however I would like to say it as well: #38

Describing the feature

We would need an option that for example categorizes notes the user wants and puts them in a category. For example, German words if somebody is learning German. And instead of displaying all flashcards when you start them, let there be an option to at least open a category or a file where there are the flashcards the user wants to practice.

Conclusion

All in all, I love this plugin, and it would be amazing if you could implement this feature :)

edit: please update or modify the plugin so that it doesn't use tags. To be hones it is really annoying when you have hundreds of tags after learning some words :((