Update strings.json - "scan_interval"

Change description from "Seconds between scans" to "Scheduled polling interval (seconds)"

custom_components/alexa_media/strings.json

@@ -26,7 +26,7 @@
           "public_url": "Public URL shared with external hosted services",
           "include_devices": "Only include these devices (comma separated)",
           "exclude_devices": "or Exclude these devices from all (comma separated)",
-          "scan_interval": "Seconds between scans",
+          "scan_interval": "Scheduled polling interval (seconds)",
           "queue_delay": "Seconds to wait to queue commands together",
           "extended_entity_discovery": "Include devices connected via Echo",
           "debug": "Advanced debugging"