GH-3392 dirty initial MSA support that shares logic with Mojang flows

Both act as the first step of AuthContext.

launcher/SkinUtils.cpp

@@ -30,9 +30,7 @@ namespace SkinUtils
  */
 QPixmap getFaceFromCache(QString username, int height, int width)
 {
-    QFile fskin(ENV.metacache()
-                    ->resolveEntry("skins", username + ".png")
-                    ->getFullPath());
+    QFile fskin(ENV.metacache()->resolveEntry("skins", username + ".png")->getFullPath());
 
     if (fskin.exists())
     {