Currently user dashboard makes a GraphQL request that explicitly specifies the WITs by which to fetch work items. Let's change that so dashboard can show any type. We could exclude type filtering from dashboards if we can't fetch the list of WITs to filter by performantly. Note that this change is only needed for SaaS, on SM we already show all WITs and allow filtering by any type, except Epic, since it is cheap to fetch all types from org level.