Migrate OAuth Admin settings to vue

apps/oauth2/Makefile

apps/oauth2/appinfo/routes.php

apps/oauth2/js-src/App.vue

apps/oauth2/js-src/components/OAuthItem.vue

apps/oauth2/js-src/main.js

apps/oauth2/js-src/webpack.common.js

apps/oauth2/js-src/webpack.dev.js

apps/oauth2/js-src/webpack.prod.js

apps/oauth2/js/oauth2.js

apps/oauth2/js/setting-admin.js

apps/oauth2/lib/Controller/SettingsController.php

apps/oauth2/lib/Settings/Admin.php

apps/oauth2/package-lock.json

apps/oauth2/package.json

apps/oauth2/templates/admin.php