Grid based desktop icon view

[andersevenrud]

• Add ghost preview of drops
• Add abstraction for grid based lists
• Add styles for grid based lists
• Support shortcuts as well as real files
• Support re-arrangement of existing entries
• 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)
• 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: #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 :(