(format): format all files, not just src/ and test/

[agilgur5]

• fix jest.config.js formatting errors
• ignore dist/ (and the default of node_modules)

Split out from #646 where I realized when editing the jest.config.js that it wasn't being linted/formatted.

This also starts another conversation -- shouldn't tsdx lint or the scripts in the templates default to './' and not just src test? src test already misses things like example and stories as well as .eslintrc.js, jest.config.js, and any other root files or root directories. Personally I think it should default to './' and we'll need an .eslintignore or symlink to .gitignore for the templates then too since we need to ignore all node_modules (at root and at example) as well as dist/. See also #517 that ESLint by default does not use .gitignore for ignores for some reason