When editing typescript jsx files I was previously using rjsx-mode to
get the jsx highlighting and emmet `className` support. This now
splits out the tsx to ts like other packages like spacemacs and doom
do. This gives me better jsx support with typescript and not impacting
the ts mode that dose not play nicely with jsx.
This seems to be working better with the snippets I created for
spacemacs that works with rjsx-mode and override any functions that
need it for typescript-tsx-mode
