Reword start into restart to indicate that the addon restarts when it…

… crashes

src/translations/en.json

@@ -7459,7 +7459,7 @@
           },
           "watchdog": {
             "title": "Watchdog",
-            "description": "This will start the add-on if it crashes"
+            "description": "This will restart the add-on if it crashes"
           },
           "auto_update": {
             "title": "Auto update",
@@ -7803,4 +7803,4 @@
       }
     }
   }
-}
+}