The frontend will then always use the name as the ID - like previous

Fixes tests

Added back upcoming to milestone filter
Fixed bug that would cause the currently selected value to disappear on filters
Fixed bug that throw an error when filtering by upcoming when there is only a milestone in the past

Bulk update works as well

Milestones needed a none selector
Assignee needed unassign.

Added nice animations too.

Fixed bug where wouldn't work on MR index

Instead of doing a full refresh of the page - i've modified the filterResults method on the Issues object to work for this form as well

Closes #14293