* racket: support racket-langserver lsp
* racket-langserver: find highest dir with init.rkt
* autoload/ale/racket: re-indent to 4 spaces
* racket: lint: sort supported tools
* racket: lint: function!
This is _not_ needed anymore, but the lint wants it. See :help E127
* racket-langserver: do not use new dict format
* racket: lint: use snake_case
* add tests for racket-langserver
* racket-langserver tests: correct result values
D. Ben Knoble