Flow Containers: Put multiple windows in one container and you can keep it in the command palette dock, and you can drag them and they will flow

### Description of the new feature / enhancement

You turn on the PowerToy, create a container and then put multiple windows into it. They can flow. You can also pin the containers in the command pallet dock

### Scenario when this would be used?

Imagine you have a messy desktop. The windows are overlapping, and you can't tell the difference. Flow Containers (Russian: Контейнеры Flow) will sort them into a group called a container. When you shake the container window the windows will move ,as opposed to the "Flow" in the name.

### Supporting information

Flow Containers are a pretty good suggestion. They can help clean up the desktop and overall make the experience better.

Begin by locating the Flow Containers PowerToy and the command palette dock areas implicated by the request; no files or tests are named. Done would require a defined design that supports multiple windows in one container, lets containers be pinned in the command palette dock, and specifies how the windows flow or move together.

Written by the indexing model from the issue text.