ComboBox:Allows Custom Value

Build 3056 on feat-new-notifications
Reviewing disabled
The baseline is larger than the new snapshot (820x522 to 440x144).
Baseline History
Build 3056b6f41cc current baseline
Current build. Accepted by Andrey Yamanov.
Build 305582f55d4
Ancestor build. There were unaccepted changes, so this was not used as a baseline.
Build 30547ecd111
Inherited baseline identical to build 2812
Build 281244bb85f
Accepted by Andrey Yamanov.
Build 27558edd72b
Accepted by Andrey Yamanov.
Build 2427e3bbd7e
Accepted by Andrey Yamanov.
Build 2295ac2074d
Accepted by Andrey Yamanov.
Commenting is disabled because there's a newer build on this branch