Removed obsolete definitions (v-content to v-main in vuetify 2.3)
Removed obsolete definitions (v-content to v-main in vuetify 2.3)

ecamp/ecamp3,pmattmann/ecamp3,pmattmann/ecamp3,ecamp/ecamp3,usu/ecamp3,ecamp/ecamp3,usu/ecamp3,usu/ecamp3,ecamp/ecamp3,pmattmann/ecamp3,usu/ecamp3,pmattmann/ecamp3