Condensate-Protein:: "Add Experimental Evidence" and "Update Functional Type" , also as input "Pubmed ID"

The contributor's action to add "Experimental Evidence" or update "Role in Condensate" for a protein in a condensate should also ask for input for the "pubmed_ids" field for the respective protein. This is separate from the comment box.

We have to add another input field to ask for "pubmed_ids" in addition here. This will be a mandatory field. This accepts a list of PubMed IDs (so we can add valid a Pubmed check here as well). The list could also be input in the form of comma-separated IDs. Then it has to be updated in the backend accordingly. The "value" of the "update_item" will be a string-encoded JSON with keys annotation and pubmed_ids as described here dd-code-docs#10 (closed)