Support for many clozures within a single flashcard

[Stefanuk12]

Overview

Currently, a flashcard can only have one cloze and the rest are treated as highlights. This PR hides and treats all possible clozures. The new system is also simpler and allows more characters to be easily added or removed in the future.

Note: I accidentally created a new branch from my previous PR which results in the weird commit history. View the files changed for a better overview...

Changed behaviour

Before

creates two flashcards

many text
such surprise [...] more ==text==
some text after

many text
such surprise ==wow== more [...]
some text after

After

many text
such surprise [...] more [...]
some text after

Addresses

#486

[st3v3nmw]

Hi, thanks for the contribution 😄!

Sorry the underlying code has gone through a major refactor recently. I'm not sure if you're still available to help resolve the merge conflicts.

Stephen,

[st3v3nmw]

Please use pnpm instead

[Stefanuk12]

Yeah, I'm currently working on implementing an Anki card parser which could be an alternative to this PR. However, a global switch (like implemented within this PR) isn't ideal, so I might not merge unless someone can think of a more intuitive solution.

[Stefanuk12]

Going to work on re-creating this.