Make the list of metabolites filterable

[MaybeJustJames]

This requires paginating and filtering the list of tracer and gauge metabolites. Will only become an issue when there are lots of tracer/gauge metabolites.

[MaybeJustJames]

Dries:

Can the selection of tracer and gauge metabolite be done with a searchable drop-down list (names only). There will ultimately be over a thousand gauge metabolites, hence, visualizing them all is not feasible.

I don't think a "drop-down" is a good UI element. IMHO filtering the list based on a text search is at least as useful. Is there a reason you specifically want a drop-down with text only and no images?

I don't intend to implement this until more pressing problems have been fixed. When I do get around to it, would you be comfortable with me prototyping the filter and see how you feel about it?