fix i18n

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

Author: t3chguy

src/i18n/strings/en_EN.json

@@ -146,6 +146,7 @@
     "Upgrade": "Upgrade",
     "Changes your display nickname": "Changes your display nickname",
     "Changes your display nickname in the current room only": "Changes your display nickname in the current room only",
+    "Changes your avatar in this current room only": "Changes your avatar in this current room only",
     "Changes colour scheme of current room": "Changes colour scheme of current room",
     "Gets or sets the room topic": "Gets or sets the room topic",
     "This room has no topic.": "This room has no topic.",