Format doesn’t respect prettier configuration

Prettier supports configuration files. https://prettier.io/docs/en/configuration.html

However, the formatter or this extension ignores use them.

I have the following prettier.config.js:

module.exports = {
  proseWrap: 'always',
  singleQuote: true,
  trailingComma: 'all',
};

and the following .editorconfig:

root = true

[*]
charset = utf-8
end_of_line = lf
indent_size = 2
indent_style = space
insert_final_newline = true
max_line_length = 100
trim_trailing_whitespace = true

[COMMIT_EDITMSG]
max_line_length = 72

However, my yaml code was suddenly being formatted using double quotes. I didn’t check any other options, the quotes just stood out.

Reproduce the YAML formatting case in VS Code using the supplied prettier.config.js and .editorconfig examples, then trace how the extension selects formatter configuration. Done means YAML formatting honors the configured single quotes and other relevant options instead of falling back to double quotes.