[Feature request] Option to only add cards if an option is set in the front matter (or elsewhere)

[RoamanEmpire]

I'm still new to the plugin, so if this is already possible feel free to close this issue.

I like using the header paragraph style, however it can quickly get out of hand when there are notes for which I do not want to generate cards.

A solution could be to set an option in the front matter or elsewhere, e.g.

---
flashcards: true
---

and only add cards if that option is set to true.

This feature could be optional and regex specific for people who still want to generate cards for all notes. For example, in the Obsidian_to_Anki settings, next to each regex field there could be a checkbox to enable or disable this.

[RoamanEmpire]

I have personally "solved" my issue by modifying the header style regex to look for #'s followed by a *.

However, I still believe an option like this could be useful to ignore certain files.

I have a huge file exported from Roam which causes the plugin to hang indefinitely. It would be useful to be able to ignore that file altogether.