[Glitch] Make description optional in collection editor

Port caf7c21453 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/api_types/collections.ts

@@ -16,7 +16,7 @@ export interface ApiCollectionJSON {
   item_count: number;
 
   name: string;
-  description: string;
+  description: string | null;
   tag: ApiTagJSON | null;
   language: string | null;
   sensitive: boolean;

app/javascript/flavours/glitch/features/collections/editor/details.tsx

@@ -182,7 +182,7 @@ export const CollectionDetails: React.FC = () => {
         />
 
         <TextAreaField
-          required
+          required={false}
           label={
             <FormattedMessage
               id='collections.collection_description'