Bulk enrichment error messages

[joanagmaia]

Changes proposed ✍️

• Websocket bulk enrichment:
  • Only send error message from websocket if all enrichment fails
  • Only send success message if there were enriched members
• Toast Messages frontend:
  • Update error message to be: "Failed to enrich x members.`"
• Bulk enrichment actions toolbar:
  • Only send elegible members' ids to the bulk request (before it was sending all selected ids)

Checklist ✅

• Label appropriately with Feature, Enhancement, or Bug.
• Tests are passing.
• New backend functionality has been unit-tested.
• Environment variables have been updated:
  • Local frontend configuration: frontend/.env.dist.local, frontend/.env.dist.composed.
  • Local backend: backend/.env.dist.local, backend/.env.dist.composed.
  • Configuration docs have been updated.
  • Team members only: update environment variables in override, staging and production env. files and trigger update config script.
• API documentation has been updated (if necessary) (see docs on API documentation).
• Quality standards are met.
• All changes have been tested in a staging site.
• All changes are working locally running crowd.dev's Docker local environment.

[mariobalca]

LGTM! Nice work 👏