Window: DynamicNotebook → Hdy.TabBar

[danirabbit]

Fixes #1339

• Use Hdy.TabBar instead of Granite.DynamicNotebook
• Reorder tab menu items to match Epiphany while we're here
• Double click to add tab and tab bar context menu are gone, doesn't seem to be a safe way to do this. These can't be accessed when the tab bar is full anyways and they duplicate functionality that already exists.

Todo:

• Dragging tab into a new window also creates home folder tab

[jeremypw]

Should be able to cherry-pick a lot from #2225 commit ca8c3b3. Although that PR uses Adw widgets the interface is practically the same.

[danirabbit]

@jeremypw I'm not sure how to solve creating a new window without the default tab. I'd appreciate help there since you know a lot more than I do about how Files creates new windows! Otherwise, I think this is ready for your feedback/review :)

[jeremypw]

@jeremypw I'm not sure how to solve creating a new window without the default tab. I'd appreciate help there since you know a lot more than I do about how Files creates new windows! Otherwise, I think this is ready for your feedback/review :)

Yes, the order of events is different now so we need to be able to create a tabview with no tabs to return. At the moment, if no path is passed to create_window then the default tab is created. I'll propose something.

[jeremypw]

Everything seems to work now. There are new critical warnings when tabs and windows are closed but they can be addressed separately if wished.