bug#76788: treesit-thing-settings for elixir-ts-mode

[Juri Linkov]

> There is an error trying to indent code using tab with the latest changes: 
>
> treesit--indent-largest-node-at: Wrong type argument: listp,
> #<treesit-parser for elixir>
>
>   car(#<treesit-parser for elixir>)
>   treesit--indent-largest-node-at(3629)
>   treesit--indent-1()
>   treesit-indent()
>   indent--funcall-widened(treesit-indent)
>   indent-for-tab-command(nil)
>   funcall-interactively(indent-for-tab-command nil)
>   call-interactively(indent-for-tab-command nil nil)
>   command-execute(indent-for-tab-command)

Thanks, now fixed.