Merge pull request #7079 from aignatov-bio/ai-sci-8328-all-users-have-same-avatar

Small fixes for table [SCI-8328]

app/javascript/vue/shared/datatable/table.vue

@@ -213,6 +213,7 @@ export default {
         cellRendererParams: {
           dtComponent: this
         },
+        pinned: (column.field === 'name' ? 'left' : null),
         comparator: () => false
       }));
 

app/serializers/user_assignment_serializer.rb

@@ -18,7 +18,7 @@ class UserAssignmentSerializer < ActiveModel::Serializer
     {
       id: object.user.id,
       name: object.user.name,
-      avatar_url: avatar_path(object, :icon_small)
+      avatar_url: avatar_path(object.user, :icon_small)
     }
   end