mode/web: Rebind history-forwards to history-forwards-maybe-query.
mode/web: Rebind history-forwards to history-forwards-maybe-query.

Closes #1874.

This makes history branching a bit more visible and useful.

CUA and button9 bindings weren't rebound, as CUA and mouse users are
more likely to expect the conventional history behavior.

jmercouris/NeXT,jmercouris/NeXT