Avoid Actions.qml cyclic dependency

[dfries]

Description

qt.qml.typeresolution.cycle: Cyclic dependency detected between "File:///Cura/resources/qml/Actions.qml" and "file:///Cura/resources/qml/Actions.qml"

Create a different namespace for Actions to import that has the dependencies it needs, but one that Actions isn't already part of.

While this solution works, I don't know what is extra special about Actions.qml that it can't import Cura without "Cyclic dependency detected" and other components like Menus/MaterialMenu.qml which is registered in cura/CuraApplication.py as a part of qmlRegisterType(QUrl.fromLocalFile(path), "Cura", 1, 0, type_name), but it seems to be okay.

Type of change

• [X] Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

• [X] Verified I no longer get "Cyclic dependency detected" on startup
• [X] Verified that Hot keys, such as F5 still triggers the reload all

Test Configuration:

• Operating System: Linux Debian

Checklist:

• [X] My code follows the style guidelines of this project as described in UltiMaker Meta and Cura QML best practices
• [X] I have read the Contribution guide
• [X] I have commented my code, particularly in hard-to-understand areas
• [ ] I have uploaded any files required to test this change