Use AjaxCache in Droplab AjaxFilter
What does this MR do?
Store data from Droplab dropdowns in AjaxCache so that it can be accessed by other components.
Why was this MR needed?
When people are selected in the issuable search bar, their display name and avatar are already known so no additional Ajax request should be made when adding the tokens.
What are the relevant issue numbers?
Edited by Winnie Hellmann