Fix bugs

src/messages/en.json

@@ -289,7 +289,13 @@
     "roleHint": "Owners can manage instances, billing, and team members. Users can only view instances they've been assigned to.",
     "inviteButton": "Send invitation",
     "inviteSent": "Invitation sent. The user will receive an email with a link to set their password.",
-    "inviteUserExists": "A user with this email is already registered."
+    "inviteUserExists": "A user with this email is already registered.",
+    "changeRole": "Change role",
+    "roleUpdated": "Role updated.",
+    "roleUpdateFailed": "Could not update role.",
+    "cancel": "Cancel",
+    "save": "Save",
+    "selfChangeBlocked": "You cannot change your own role."
   },
   "assignments": {
     "loading": "Loading assignments…",