Code factorisation
Drag and drop one whole MemoryBuilder page

Avoid losing everything after a drag and drop.
Change the design of the MemoryBuilder page
Fix number of neededTiles and style
Reduce root padding
Paste anywhere from MemoryBuilder
Drop anywhere on document, remove filedrop background
Better behaviour for camer

Disable the shoot icon when not available. Add icons.
Build memory (not yet interactive)