Show ongoing tasks indicator on the taskbar

[FibYar]

What's the Problem?

The "Files" doesn't show files copying status on the Windows taskbar

Solution/Idea

The "Files" should show ongoing operation status on the Windows taskbar like File Explorer does.

Alternatives

For now "Files" shows status in it's own GUI, but this is not a good case, when you copy a very large file, that you should want to copy in the background.

Priorities

Capability	Priority
This proposal will allow developers to accomplish W	Must
This proposal will allow end users to accomplish X	Should
This proposal will allow developers to accomplish Y	Could
This proposal will allow end users to accomplish Z	Won't

Files Version

v2.0.13.0 OS Version: 10.0.19042.1237

Windows Version

Windows 10 20H2 19042.1237

Additional comment

No response

[yaira2]

This issue should be resolved with #6273.