Pontoon: Update Italian (it) localization of TW Power Tools

Co-authored-by: Luca <maruttiluca0@gmail.com>
diff --git a/src/static/_locales/it/messages.json b/src/static/_locales/it/messages.json
index 17ed283..f5f97c8 100644
--- a/src/static/_locales/it/messages.json
+++ b/src/static/_locales/it/messages.json
@@ -280,7 +280,7 @@
     "description": "Second part of the entry in the log of the 'lock/unlock threads' dialog, when the log entry states that the thread was *not* *un*locked successfully. Log entries are of the form '{first_part}: {second_part}'. For example: 'Thread 164: Locked successfully'."
   "inject_autorefresh_list_snackbar_message": {
-    "message": "Ci sono nuovi threads.",
+    "message": "Nuovi thread disponibili.",
     "description": "Message shown in a snackbar when new threads are found in a thread list. Another button asks the user to refresh the list."
   "inject_autorefresh_list_snackbar_action": {