fix(v-toolbar): add back missing styles
fix(v-toolbar): add back missing styles

`v-input` should have its default margin set to 0 in `v-toolbar`

fixes #4331

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