GitLab

Fixes issue with dropdowns not selecting when navigating between tabs

Closes #14813

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

Add user avatar to user selection

Milestones needed a none selector
Assignee needed unassign.

Added nice animations too.

Make add single and add multi work properly.
Multiple inputs for multiselect

Adds deselect still a WIP.

Highlights first row when filtering

This allow us to set a different input to filter results

Closes #14401

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