use images/icons for mac app icons

macos/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -1,61 +1,61 @@
 {
   "images" : [
     {
-      "filename" : "Ghostty_256x256x32 6.png",
+      "filename" : "icon_16x16.png",
       "idiom" : "mac",
       "scale" : "1x",
       "size" : "16x16"
     },
     {
-      "filename" : "Ghostty_256x256x32 5.png",
+      "filename" : "icon_16x16@2x@2x.png",
       "idiom" : "mac",
       "scale" : "2x",
       "size" : "16x16"
     },
     {
-      "filename" : "Ghostty_256x256x32 4.png",
+      "filename" : "icon_32x32.png",
       "idiom" : "mac",
       "scale" : "1x",
       "size" : "32x32"
     },
     {
-      "filename" : "Ghostty_256x256x32 3.png",
+      "filename" : "icon_32x32@2x@2x.png",
       "idiom" : "mac",
       "scale" : "2x",
       "size" : "32x32"
     },
     {
-      "filename" : "Ghostty_256x256x32 2.png",
+      "filename" : "icon_128x128.png",
       "idiom" : "mac",
       "scale" : "1x",
       "size" : "128x128"
     },
     {
-      "filename" : "Ghostty_256x256x32 1.png",
+      "filename" : "icon_128x128@2x@2x.png",
       "idiom" : "mac",
       "scale" : "2x",
       "size" : "128x128"
     },
     {
-      "filename" : "Ghostty_256x256x32.png",
+      "filename" : "icon_256x256.png",
       "idiom" : "mac",
       "scale" : "1x",
       "size" : "256x256"
     },
     {
-      "filename" : "Ghostty_512x512x32.png",
+      "filename" : "icon_256x256@2x@2x.png",
       "idiom" : "mac",
       "scale" : "2x",
       "size" : "256x256"
     },
     {
-      "filename" : "Ghostty_512x512x32 1.png",
+      "filename" : "icon_512x512.png",
       "idiom" : "mac",
       "scale" : "1x",
       "size" : "512x512"
     },
     {
-      "filename" : "Ghostty_512x512x32 2.png",
+      "filename" : "icon_512x512@2x@2x.png",
       "idiom" : "mac",
       "scale" : "2x",
       "size" : "512x512"