When a Dashboard is edited, the tool needs to 'show' me that I have 'unsaved' changes on the bottom of the screen, just like it does on Records or Custom views. And once I click on 'save', it should show me / confirm - that is has indeed- saved the changes.

Right now in Dynamics -there is NO indication that a DB has been edited, and whether it has unsaved changes or not - until you try to 'navigate' away from it. Poor design.