Pagination

[PlethoraChutney]

Our lab slack is about five years old. The general channel is extremely long. Loading is not currently an issue, but with the addition of images or with a few more years of use (or heavier use) it might be.

The only real upside of using a single page is that the browser can handle search. Implementation of a regex-based search modal within a channel, which searched the JSON files themselves and rendered messages directly in the DOM would let us paginate results. I'm sure there are better ways of handling it, too.