[Feature Request] Add input field for selecting bundles

[Krik658]

I'd like to have a Bundles input field that

• shows all existing bundles with the features of the tags popup I suggested here: [Feature Request] Popup with all tags when focusing tag input #136
• when adding an existing bundle it should add tags to the Tags input field that the define the bundle and are not yet added to the Tags input

That allows to easily add bookmarks to bundles without looking up the definitions of the bundles.