I'm not entirely happy with the way that native drag-and-drop looks,
the transparent bit that you hold while dragging looks dumb.
Will have to look into control / shift clicking to multiselect.
Also just using browser confirm() for now since I haven't made my
own dialog for that kind of thing yet.
- album card has placeholder for future thumbnail.
- replaced nested tree hierarchy lists with separate boxes.
- list/grid view also applies to the root listing.
- added a sticky right panel for all the tools. not pretty yet.
- mechanism for adding sticky panel changed. instead of applying
it to the #right, you apply it to #content_body so that its
grid layout can be updated properly.
