Add simplified outfit request template

[Silverfeelin]

Because Discord image previews are typically square a format that would show all selected items in a square will make it easier to see all the items without opening the full image.

Coincidentally there's 9 unique item slots (outfit, shoes, mask, face accessory, necklace, hair, hat, cape, prop). So it's possible to reserve a slot for each item in a 3x3 grid as long as only one item is selected per slot (and per color since those could be rendered as separate outfits).

This would be an extra option on top of the complete template options that are currently supported.

• Move the background button to the other buttons above the item list since it's not important enough to stick to the screen (and this makes space for the new request button).
• Add button(s) for the new option. Maybe only show colors that have max 1 item per slot.
• Figure out best format for 3x3 grid.
• TODO..

[Silverfeelin]

Going to implement it this weekend.