XE-1271: Search suggestions for the Send Message gadget don't appear correctly when selecting "User" or "Group" from the Send Message drop-down list
* Use the new user picker.
(cherry picked from commit 525a7548d9846c9c7fb2448c647cb8c7a7b7cd40)
XE-1271: Search suggestions for the Send Message gadget don't appear correctly when selecting "User" or "Group" from the Send Message drop-down list
* Use a custom user picker that displays the selected user/group inline, after the text input.
(cherry picked from commit 553bcdeb0b516f68b3c9397985241f397f4b25bf)