Add crm_customer_id to issue list filtered search
CRM was released in %15.0. Contact list are supported through the issue list, but only as a URL param by reading the crm_customer_id
url query param in issues_list_app.vue
on mount and passing it to the GraphQL API query (https://gitlab.com/gitlab-org/plan/-/issues/566#note_911178740).
The token needs to be added to gl-filtered-search.