* refactor: index.html

* chore: preconnect to GA

* chore(SEO): add meta content

* chore(SEO): add alt to ethereum logo

* chore(accessibility): add aria-labels to menus

* chore(accessibility): mark AppBody as main

* chore(accessibility): update nav link ids

* chore(accessibility): set html.lang to match i18n locale

* chore(refactor): mv html.lang to useEffect