problem:
some layer packages lists have the open and closing parentheses on the same line
as the first and last listed package, but most seem to have them on a separate
lines.
solution:
put the open and close parentheses on separate lines, except for lists with only
a single package, they are written on the same line as the variable name and
parentheses.
fix the lists indentation
In json-mode tell prettier the content is always to be parsed as json.
Fixes formatting in orgmode `#+BEGIN_SRC json` blocks as prettier
otherwise expects content as javascript.
Fixes: #11343
Needs to use `pre-init` function in order to have the variable
spacemacs-web-beautify--modes to be populated before the init function of
web-beautify is actually called.
