fix(VTabs): use new value as an index if tab action isn't found
fix(VTabs): use new value as an index if tab action isn't found

Phlow2001/vuetify,vuetifyjs/vuetify,vuetifyjs/vuetify,Webifi/vuetify,Phlow2001/vuetify,Webifi/vuetify,Phlow2001/vuetify,vuetifyjs/vuetify,Webifi/vuetify,vuetifyjs/vuetify,Phlow2001/vuetify