Create / edit geneset description (#2139)

* geneset description add

* edit geneset description

* default state for desc

* remove log

* naming, todo

* check for both dup name and desc

* fixes

* do not store gene set modal state in history stack

* Update createGenesetDialogue.js

* Update editGenesetNameDialogue.js

Co-authored-by: bkmartinjr <bruce@chanzuckerberg.com>

client/src/components/geneExpression/index.js

@@ -23,6 +23,7 @@ class GeneExpression extends React.Component {
           setGenes={Array.from(geneset.genes.keys())}
           setGenesWithDescriptions={geneset.genes}
           setName={name}
+          genesetDescription={geneset.genesetDescription}
         />
       );
     }