Grid based desktop icon view

[andersevenrud]

• [x] Add ghost preview of drops
• [x] Add abstraction for grid based lists
• [x] Add styles for grid based lists
• [x] Support shortcuts as well as real files
• [x] Support re-arrangement of existing entries
• [x] Support grid position on initial drop
• [ ] Add position normalization (for resize or logging in on a screen with different resolution)
• [ ] Integrate with internal storage (uses direct localStorage right now)
• [ ] Integrate with theme (just do reinitialize on theme change)
• [x] Clean up
• [ ] Add option in contextmenu / settings app ?

Most of this is based on a prototype I made back in the day: https://jsfiddle.net/andersevenrud/uvpv6Lv9/

Ref: https://github.com/os-js/osjs-client/issues/51

[andersevenrud]

Just a quick preview of the grid in action. Also shows the ghost when a drop-over is handled:

[ajmeese7]

@andersevenrud would you be able to add an option to this to switch between free-moving icons and the grid system?

[andersevenrud]

@ajmeese7 That would be possible. Not sure if I have the time to look into this any time soon though :(