Fix linux package build by adding png icons

Author: Moulberry

package/create_ico.sh

@@ -18,6 +18,3 @@ done
 
 # use imagemagick to create ico file
 convert $PWD/windows_icons/*.png windows.ico
-
-# delete folder
-rm -R windows_icons

package/windows_icons/icon_16x16.png

@@ -23,7 +23,7 @@ cargo packager --config '{'\
 '  "identifier": "com.moulberry.pandoralauncher",'\
 '  "resources": [],'\
 '  "binaries": [{ "path": "PandoraLauncher-Linux", "main": true }],'\
-'  "icons": ["package/windows.ico"]'\
+'  "icons": ["package/windows_icons/icon_16x16.png", "package/windows_icons/icon_32x32.png", "package/windows_icons/icon_48x48.png", "package/windows_icons/icon_256x256.png"]'\
 '}'
 
 mv dist/PandoraLauncher-Linux dist/PandoraLauncher-Linux-$version-x86_64-Portable