[feature request] Export feature

[flowingblaze]

I would like to request an export feature to memex highlights. I believe this would be useful because you can export your highlights all at once in a format like html, .txt, or markdown and import. I work with knowledge and would like an easier way to export my highlights than the labor-filled copy paste as I have way too many highlights for it to be sustainable to manually copy paste every highlight into a document. This would make the extension much easier to use in my opinion.