save view mode and state of side-bar using local storage

app/components/commander/action_modes.hbs

app/components/commander/index.hbs

app/components/commander/index.js

app/components/commander/view_mode.hbs

app/components/commander/view_mode.js

app/controllers/authenticated.js

app/controllers/authenticated/dualpanel_base.js

app/templates/authenticated.hbs

app/utils/localstorage.js

package-lock.json

package.json