[6.x] Dutch translations (#13897)

Author: Casb02

lang/nl.json

@@ -208,7 +208,7 @@
     "Close Markdown Cheatsheet": "Markdown-cheatsheet sluiten",
     "Close Modal": "Sluit modal",
     "Code Block": "Codeblok",
-    "Collapse": "Ineenstorting",
+    "Collapse": "Inklappen",
     "Collapse All": "Alles inklappen",
     "Collapse All Sets": "Alle sets inklappen",
     "Collapse Set": "Set inklappen",