Get the differential expression (DE) notebook up and running within the search page for genomics. My plan is to start with repeating the steps we used for WGCNA (see [PR](https://github.com/VEuPathDB/web-monorepo/pull/1428/files#diff-fec92d71eda9e4a62a7ad6d2a80d626f078d10dd22443683cbe478eba2c594dd)) and see how far that gets us. Most of it should be quite similar.