Update `English` translation

Currently translated at 100.0% (531 of 531 strings)

Translation: Wiki-Bot/Discord
Translate-URL: https://weblate.frisk.space/projects/wiki-bot/discord/en/

i18n/en.json

@@ -408,6 +408,7 @@
         "lang": "Language:",
         "license": "License:",
         "manager": "Wiki manager:",
+        "misermode": "Miser mode:",
         "name": "Full name:",
         "no": "No",
         "none": "*none*",