troubleshooting-mset9: fix inclusion of winerror234

Add another layer of containering to avoid messing up the <details>
container. Which somehow didn't affect the English page, but it broke
on all other languages.

Author: lifehackerhansol

docs/troubleshooting-mset9.md

@@ -137,11 +137,11 @@ One or more files that MSET9 needs to run is missing or corrupted. Re-download t
 
 :::
 
-::: details Error 18: Windows Locale Settings are broken!
+:::: details Error 18: Windows Locale Settings are broken!
 
 <!--@include: ./_include/winerror234.md -->
 
-:::
+::::
 
 ## MSET9 (exploit)