If all of the model names are the same in canAddNotes (which is always true for Yomichan, because Yomichan only attempts to add one note type), then we can optimize the call using AnkiDroid's findDuplicateNotes call. This speeds up duplicate checks quite a bit from personal testing.

If the model names are not all the same, then we fallback to the original code.

The README still recommends to have the max results as 8 because the default 32 results is still a bit slow compared to the PC version. (Note: "max results" means the maximum number of results from Yomichan's popup, i.e. under General -> Maximum number of results)

The optimized query may partially fix quotes and spaces not working in the key field, because AnkiDroid's internal implementation uses a checksum instead of comparing the raw field. This does not fix Yomichan's findNotes call though, so the book (to open the most recent card) may not show.

Depends on #42