Layout:Panel As Dialog

Build 2618 on feat-button-rework
Reviewing disabled
Baseline History
Build 26186e0635a
Current build. There are unaccepted changes, so build 2615 is still the baseline.
Build 261585ab2de current baseline
Accepted by Andrey Yamanov.
Build 26065e26c44
Accepted by Andrey Yamanov.
Build 25908b2abc8
Auto-accepted
Commenting is disabled because there's a newer build on this branch