Update Steam: fix not working browser (#962)

Author: Kreyren

Applications/Games/Steam/Online/script.js

@@ -1,4 +1,6 @@
 include("engines.wine.quick_script.online_installer_script");
+include("engines.wine.verbs.corefonts");
+include("engines.wine.plugins.windows_version");
 
 var installerImplementation = {
     run: function () {
@@ -10,6 +12,13 @@ var installerImplementation = {
             .url("https://steamcdn-a.akamaihd.net/client/installer/SteamSetup.exe")
             .checksum("4b1b85ec2499a4ce07c89609b256923a4fc479e5")
             .category("Games")
+            .wineVersion(LATEST_STAGING_VERSION)
+            .wineDistribution("staging")
+            .preInstall(function (wine/*, wizard*/) {
+                wine.setOsForApplication().set("steam.exe", "winxp").do();
+                wine.setOsForApplication().set("steamwebhelper.exe", "winxp").do();
+                wine.corefonts();
+            })
             .executable("Steam.exe", ["-no-cef-sandbox"])
             .go();
     }