Fix regular expression for RFC 5646 (regression from #3604) (#4133)

app/javascript/mastodon/locales/ar.json

@@ -18,6 +18,12 @@
   "account.unfollow": "إلغاء المتابعة",
   "account.unmute": "إلغاء الكتم عن @{name}",
   "boost_modal.combo": "يمكنك ضغط {combo} لتخطّي هذه في المرّة القادمة",
+  "bundle_column_error.body": "Something went wrong while loading this component.",
+  "bundle_column_error.retry": "Try again",
+  "bundle_column_error.title": "Network error",
+  "bundle_modal_error.close": "Close",
+  "bundle_modal_error.message": "Something went wrong while loading this component.",
+  "bundle_modal_error.retry": "Try again",
   "column.blocks": "الحسابات المحجوبة",
   "column.community": "الخيط العام المحلي",
   "column.favourites": "المفضلة",
@@ -136,7 +142,6 @@
   "privacy.unlisted.long": "لا تقم بإدراجه على الخيوط العامة",
   "privacy.unlisted.short": "غير مدرج",
   "reply_indicator.cancel": "إلغاء",
-  "report.heading": "تقرير جديد",
   "report.placeholder": "تعليقات إضافية",
   "report.submit": "إرسال",
   "report.target": "إبلاغ",