feat(oxfmt): Support config for prettier formatFile()

[leaysgur]

• When calling Prettier, pass config file path and read it in JS
  • It is possible because our current config file is almost as-is with Prettier's
• And, since there is only single config, just load it once and cache it
• We don't need to enumerate every field to deserialize with serde
  • We have no way of knowing what fields the plugin will define in the first place

[leaysgur]

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• feat(oxfmt): Support config for prettier formatFile() #16526 👈 (View in Graphite)
• feat(oxfmt): Support formatting HTML, YAML, GraphQL, Handlerbars, Markdown, CSS files #16524
• feat(oxfmt): Support formatting JSON files #16523
• main

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[leaysgur]

Ah, import(".oxfmtrc.jsonc" { with: { type: "json" }}) does not support JSONC!

Choices:

• 👉🏻 Keep pass path + add JSONC support in JS
  • I think this is acceptable: https://github.com/fabiospampinato/tiny-jsonc/blob/master/src/index.ts
• or Keep serde deserialized JSON and pass it
  • To support plugins, fields can not be statically defined
  • It means that we need JSON stringify?

[leaysgur]

On second thought, this is incomplete.

If we resolve plugins[].languages for plugins, we can cache config at that time, so there's no need to pass them individually.