Fix username autocompletion
Review Request #2362 — Created March 20, 2023 and submitted
This code still assumed the account chooser was a combo box, but it's a drop down now.
Opened New IM dialog, typed a few letters, and selected a username from the Demo account (while a different account was selected.)
| Summary | ID |
|---|---|
| 1d18d6c643b28fff4bd113f8cbe29a7c04772525 |
