Use "xterm-ghostty" as the primary terminfo name. This is a hack on a
hack...we use "xterm-ghostty" to prevent vim from breaking, and when we
do this as the default we break tcell-based applications (lazygit, aerc,
etc). tcell has a bug where the primary terminfo name must be the
value of TERM. https://github.com/gdamore/tcell/pull/639 fixes the issue
but is not merged yet.
Fixes: 779186ad ("config: add term config option")