Tree view/Task view sidebars are unnecessary when there is no document

[chennes]

Is there an existing issue for this?

• I have searched the existing issues

Problem description

Now that Start is no longer workbench, we load directly into the user's chosen workbench (Part Design by default). This means that that workbench's panels are all shown. In this case, when starting with no document, if the Start screen is shown it displays with the Task view and Tree view open, even though there is nothing in them. This is not a good use of space.

Full version info

OS: Windows 11 build 22631
Word size of FreeCAD: 64-bit
Version: 0.22.0dev.36992 (Git)

Subproject(s) affected?

None

Anything else?

No response

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