[Operation] Dataset Viewer

[qiaw99]

With dataset viewer, user should not only search instances with texts but also with id.

Idea:
when entering input, check if the input can be converted to digits.

[nfelnlp]

I would prefer a separate input field for an ID (which can be very short and put to the right of the other search bar).

[qiaw99]

That might create conflicts (the place where we display results) when both input boxes contain inputs