. is already present in the i18n label

ts/components/conversation/GroupNotification.tsx

@@ -48,7 +48,7 @@ function renderChange(change: PropsForGroupUpdateType) {
   const people = isTypeWithContact(change) ? getPeople(change) : [];
   switch (change.type) {
     case 'name':
-      return `${window.i18n('titleIsNow', [change.newName || ''])}.`;
+      return `${window.i18n('titleIsNow', [change.newName || ''])}`;
     case 'add':
       if (!change.contacts || !change.contacts.length) {
         throw new Error('Group update add is missing contacts');