feat: apply full icon assets and bump version

Agent-Logs-Url: https://github.com/SillyLittleTech/Flean/sessions/0ec79bb5-3418-436d-a37e-a0a35df707ad

Co-authored-by: kiyarose <75678535+kiyarose@users.noreply.github.com>

Author: Copilot

ios/Flean/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -2,51 +2,61 @@
   "images" : [
     {
       "idiom" : "mac",
+      "filename" : "icon_16.png",
       "scale" : "1x",
       "size" : "16x16"
     },
     {
       "idiom" : "mac",
+      "filename" : "icon_16@2x.png",
       "scale" : "2x",
       "size" : "16x16"
     },
     {
       "idiom" : "mac",
+      "filename" : "icon_32.png",
       "scale" : "1x",
       "size" : "32x32"
     },
     {
       "idiom" : "mac",
+      "filename" : "icon_32@2x.png",
       "scale" : "2x",
       "size" : "32x32"
     },
     {
       "idiom" : "mac",
+      "filename" : "icon_128.png",
       "scale" : "1x",
       "size" : "128x128"
     },
     {
       "idiom" : "mac",
+      "filename" : "icon_128@2x.png",
       "scale" : "2x",
       "size" : "128x128"
     },
     {
       "idiom" : "mac",
+      "filename" : "icon_256.png",
       "scale" : "1x",
       "size" : "256x256"
     },
     {
       "idiom" : "mac",
+      "filename" : "icon_256@2x.png",
       "scale" : "2x",
       "size" : "256x256"
     },
     {
       "idiom" : "mac",
+      "filename" : "icon_512.png",
       "scale" : "1x",
       "size" : "512x512"
     },
     {
       "idiom" : "mac",
+      "filename" : "icon_512@2x.png",
       "scale" : "2x",
       "size" : "512x512"
     }