Provide the ability to autocomplete citation keys based on `.bib` file

[mkdjr]

Describe the solution you'd like
When typing in a markdown file in obsidian, typing @ triggers citation key auto completion based on the same .bib file that is being used by the plugin. This is in contrast to the current functionality that only works with citation keys when Zotero is connected.

Describe alternatives you've considered
mgmeyers's obsidian-pandoc-reference-list provides this functionality. While a wonderful plugin, I do not use many of it's other features and so would be grateful if this feature was implemented.

Feralflora proposed citation key autocomplete using Various Complements and QuickAdd here.