Use `stylish` as default formatter instead of eslint-formatter-codeframe

[mizdra]

close: #373

• I think it depends on the situation as to whether codeframe or stylish is better.
  • codeframe is excellent for displaying the details of a problem. However, the output is too large, so it is not easy to see at a glance.
  • stylish has a small output, so it is easy to see at a glance. However, it is not possible to display problem details.
• I was wondering which one to make the default, but I decided to make stylish the default for the following reasons.
  • codeframe is a 3rd-party package, and it is a little difficult to bundle it with eslint-interactive.
  • codeframe makes the package size of Peslint-interactive` larger.
  • If necessary, users can install eslint-formatter-codeframe themselves and use it as the formatter for eslint-interactive.

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