maybe fixed auth issue?

fclauncher/app.go

@@ -131,12 +131,8 @@ func (a *App) CheckPrerequisites() {
 			return
 		}
 	}
-	err = os.Remove(filepath.Join(dir, "FCLauncher", "authentication.json"))
-	if err != nil {
-		fmt.Printf("Unable to delete auth file\n")
-	}
 	os.MkdirAll(filepath.Join(dir, "FCLauncher"), 0755)
-	f, _ := os.OpenFile(filepath.Join(dir, "FCLauncher", "authentication.json"), os.O_CREATE|os.O_RDWR, 0755)
+	f, _ := os.OpenFile(filepath.Join(dir, "FCLauncher", "authentication.json"), os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0755)
 	defer f.Close()
 	data, _ := json.Marshal(a.Auth)
 	f.Write(data)

fclauncher/frontend/package.json.md5

@@ -1 +1 @@
-48cb20b8d107dab0a7876a449352234a
+ad9da3c17151b053a4d2fda8e3578901