fix(goTo): get clientHeight from <html> when target is <body>
fix(goTo): get clientHeight from <html> when target is <body>

body.clientHeight === body.scrollHeight in iOS

fixes #6914

(cherry picked from commit 3f965929aa4f80fef9629c4017ca8a12c7af8bbe)

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