Update service-worker.js with typo

Author: tjvandam

service-worker.js

@@ -7,7 +7,7 @@ const STATIC_FILES = [
     '/ble-settings-app/functions.js',
     '/ble-settings-app/manifest.json',
     '/ble-settings-app/composer-manifest.json',
-    '/ble-settings-app/settings/settings-testing_1.json',
+    '/ble-settings-app/settings/settings_testing_1.json',
     '/ble-settings-app/settings/settings-v6.15.0.json',
     '/ble-settings-app/settings/settings-v6.14.1.json',
     '/ble-settings-app/settings/settings-v6.12.1.json',