Add step for installing Nextcloud

scripts/Windows/Scripts/Context.ps1

@@ -205,6 +205,10 @@ class Context {
             });
     }
 
+    [string] GetNextcloudConfigFile() {
+        return "$env:APPDATA/Nextcloud/nextcloud.cfg";
+    }
+
     [void] Reboot() {
         Write-Host "Restarting Computer...";
         $this.RegisterReboot();