Latex-workshop: Improve Cite Search Speed

[jsinglet]

For those of us with very large bib files, the citation feature is quite slow. I would really appreciate speeding this up a tad.

I would suggest perhaps monitoring all included bib files for changes and building an index whenever it does. This data structure should get the job done: https://en.wikipedia.org/wiki/Trie

[jsinglet]

I looked at the code and it looks like you are using built in searching. I'm gonna take a pass at improving this...