Sorting and links for when gene_symbol equals UniProt ID

[dustine32]

Many genes have no gene symbols. When this is the case the UniProt ID is used as a placeholder in gene_symbol:

We should make clear in the data that these genes DO NOT have a gene symbol. Specifically, I will add a boolean field gene_has_no_symbol to facilitate sorting and links in the UI.

For links, if gene_has_no_symbol==True, the NCBI Gene link should be "disabled" (value is just text "N/A"):

This logic should replace the "Uncharacterized protein"-overriding logic implemented in #87 and a new pango_data release should be created for @tmushayahama to load.

Tagging @tmushayahama @thomaspd @huaiyumi

[huaiyumi]

Also, if a gene is not in any PANTHER tree, like the example in the screenshot, the links in "PAN-GO evolutionary model for this family" and "PANTHER Tree Viewer" should be removed, and replaced by 'N/A'.