fix: #8217, add missing lang key

public/language/en-GB/admin/settings/group.json

@@ -3,6 +3,7 @@
 	"private-groups": "Private Groups",
 	"private-groups.help": "If enabled, joining of groups requires the approval of the group owner <em>(Default: enabled)</em>",
 	"private-groups.warning": "<strong>Beware!</strong> If this option is disabled and you have private groups, they automatically become public.",
+	"allow-multiple-badges": "Allow Multiple Badges",
 	"allow-multiple-badges-help": "This flag can be used to allow users to select multiple group badges, requires theme support.",
 	"max-name-length": "Maximum Group Name Length",
 	"max-title-length": "Maximum Group Title Length",

src/views/admin/settings/group.tpl

@@ -21,7 +21,7 @@
 			<div class="checkbox">
 				<label class="mdl-switch mdl-js-switch mdl-js-ripple-effect">
 					<input class="mdl-switch__input" type="checkbox" data-field="allowMultipleBadges">
-					<span class="mdl-switch__label"><strong>Allow Multiple Badges</strong></span>
+					<span class="mdl-switch__label"><strong>[[admin/settings/group:allow-multiple-badges]]</strong></span>
 				</label>
 			</div>