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1. remove vaadin dependencies from magnolia-ui-framework
   
   1. Move info.magnolia.ui.framework.view.View into vaadin-integration
   2. Create app framework specific interfaces for e.g. AppView, SubAppView
2. AppContextImpl could implement two interfaces:
   1. AppContext for contextual information releveant for the app 
   2. one interface exposing the contract to the AppController 

Additional Information

Documentation

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