redesign music and drone selection

source/scripts/DroneCard.lua

@@ -0,0 +1,13 @@
+local pd <const> = playdate
+local gfx <const> = Graphics
+
+local fontSimple = Graphics.font.new('assets/fonts/peridot_7')
+
+class('DroneCard').extends(gfx.sprite)
+
+function DroneCard:init(x, y, drone)
+    self:setImage(gfx.image.new('assets/images/card_' .. drone.id .. '.png'))
+    self:setCenter(0, 0)
+    self:moveTo(x, y)
+    self:add()
+end