Add .desktop with icon

com.supermodel3.Supermodel.desktop

@@ -0,0 +1,8 @@
+[Desktop Entry]
+Name=Supermodel
+GenericName=Emulator
+Comment=A Sega Model 3 Arcade Emulator
+Exec=supermodel
+Type=Application
+Icon=com.supermodel3.Supermodel
+Categories=Game;ArcadeGame;Emulator

com.supermodel3.Supermodel.yaml

@@ -24,15 +24,20 @@ modules:
           -f Makefiles/Makefile.UNIX
           NET_BOARD=1
       - install -Dm 0755 bin/supermodel ${FLATPAK_DEST}/bin/supermodel
+      - install -Dm 0644 ${FLATPAK_ID}.desktop ${FLATPAK_DEST}/share/applications/${FLATPAK_ID}.desktop
       - install -Dm 0644 ${FLATPAK_ID}.metainfo.xml ${FLATPAK_DEST}/share/metainfo/${FLATPAK_ID}.metainfo.xml
+      - install -Dm 0644 supermodel128x128.png ${FLATPAK_DEST}/share/icons/hicolor/128x128/apps/${FLATPAK_ID}.png
       - cp -r Assets ${FLATPAK_DEST}
       - cp -r Config ${FLATPAK_DEST}
     sources:
       - type: git
         url: https://github.com/trzy/Supermodel.git
-        branch: master
         commit: 6993dfcfb0ebe369f246ff50e3669d4557a527da
+      - type: file
+        path: com.supermodel3.Supermodel.desktop
       - type: file
         path: com.supermodel3.Supermodel.metainfo.xml
+      - type: file
+        path: supermodel128x128.png
       - type: patch
         path: ldflags.patch