* first cut at re-embedding route and back-end support
* update and expand config route tests
* add scanpy_umap
* add reembedding to config route parameters
* front-end support for reembedding fetch and UI
* remove unused imports
* add loading state
* save reembedding in reducer state
* improve withColsFrom
* transmit reembed schema to client; pick unique embedding names
* display embeddings
* format
* lint
* spaces, tab size 2
* lint
* test hack for smoke-test race
* back out hack sleep
* add check for backed mode
* add unit test for reembedding
* lint
* hide re-embedding CLI param from help
* Undo selection appends diffExp genes to user gene list
Fixes https://github.com/chanzuckerberg/cellxgene/issues/1171
Need: When a user performs a differential expression from within
a sub-selection (world) of the data and then resets the selection to all
cells (universe), the differential expression results are no longer
valid.
Approach:
* When the selection is reset, move the top (maxUserDefinedGenes
- len(userDefinedGenes) from the differential expression results to the
list of user defined genes
* Raise maxUserDefinedGenes to 25 to give users more room and
accommodate the extra genes transferred in from differential expression
Other commits:
* Choose different button icons
* Add diff exp genes to user defined genes on subset too
* Respond to feedback from @liaprins-czi and @bkmartinjr
Bruce Martin