Format more code in jsx pre tags

[dsherret]

See #420 and #398. It should probably format more code in pre tags instead of turning off formatting in them.

[nicolo-ribaudo]

I just stumbled upon this issue, and I do not understand why <pre> needs to be special cased at all. It looks like this has been introduced in https://github.com/dprint/dprint-plugin-typescript/issues/398, but the two snippets of code in that issue ("input" and "unexpected output") have exactly the same runtime semantics. Whitespace inside JSX is not significant (all whitespace and newlines are collapsed to a single space), regardless of which tag contains it.

You can see in https://babeljs.io/repl#?code_lz=DwBwTgpgfAUABHYBjA9gEwnJAbAhgZ3wDlcBbCAXgCI8A7AcwFdd6IBaACwBdTsrYECAGTYuAbhBD64-IOGix-ELlpTxAFQ4BLfHB1x8KcnC4QAHlwB0I8QHolKtWNny7k6c4TBbqDLG_g0M4woJACiL6YOATEZJQ0Kkws7Ny8_C5wNhJOmQoOqh6a-vqGxqYW1gr2ygXiuW5Ost6R_raBsEA&sourceType=module (<- enable the React preset in the left sidebar) that the output code for the two cases is exactly the same.