Add ability to filter thumbnails by filter/pupil

[stscijgbot-jwql]

Issue JWQL-202 was created on JIRA by Bryan Hilbert:

From the JWQL User Survey. Brought up by NIRCam and NIRISS teams.

Allow thumbnails to be filtered (and sorted?) by filter/pupil value.
Are there any other pieces of metadata we should think about?
We can already filter on detector, viewed/unviewed, exposure type (e.g. NRC_IMAGE) and visit number. Perhaps subarray? A single observation will have only a single subarray, but you can get mixed results from the query page.