Add app token QR codes for mobile apps

package-lock.json

package.json

settings/js/vue-0.js

settings/js/vue-1.js

settings/js/vue-1.js.map

settings/js/vue-3.js

settings/js/vue-4.js

settings/js/vue-5.js

settings/js/vue-6.js

settings/js/vue-7.js

settings/js/vue-settings-admin-security.js

settings/js/vue-settings-admin-security.js.map

settings/js/vue-settings-apps-users-management.js

settings/js/vue-settings-apps-users-management.js.map

settings/js/vue-settings-personal-security.js

settings/js/vue-settings-personal-security.js.map

settings/src/components/AuthTokenSetupDialogue.vue