fix: the other way of setting charset in html

fix: meta charset hint

fix: encoding of from file snapshots

feat: search return with date (#1173)

fix: do img filtering in node instead of browser

fix: generated alt

feat: provide option to discard links

fix: several crash cases

feat: md options pass though to turndown

cleanup: use local project code as much as possible

restructure: nolonger a firebase application (#1160)