Bump eslint-config-prettier from 3.3.0 to 6.3.0 in /frontend

[dependabot-preview]

Bumps eslint-config-prettier from 3.3.0 to 6.3.0.

Changelog

Sourced from eslint-config-prettier's changelog.

Version 6.3.0 (2019-09-10)

• Added: [@typescript-eslint/brace-style]. Thanks to Masafumi Koba
  (@​ybiquitous)!

Version 6.2.0 (2019-09-03)

• Added: [@typescript-eslint/quotes] (as a [special
  rule][@typescript-eslint/quotes-special]). Thanks to Masafumi Koba
  (@​ybiquitous)!

Version 6.1.0 (2019-08-19)

• Added: [function-call-argument-newline] (new in ESLint 6.2.0). Thanks to
  Masafumi Koba (@​ybiquitous)!

Version 6.0.0 (2019-06-25)

• Changed: The CLI helper tool now considers [no-confusing-arrow] to conflict
  if you use the default value of its allowParens option. The default was
  changed to true in ESLint 6, which conflicts with Prettier.

  If the CLI helper tool gives you errors about this after upgrading, the
  solution is to change this:

  {
    "rules": {
      "no-confusing-arrow": ["error"]
    }
  }

  Into this:

  {
    "rules": {
      "no-confusing-arrow": ["error", { "allowParens": false }]
    }
  }

  The latter works in both ESLint 6 as well as in ESLint 5 and older.

• Improved: eslint --print-config usage instructions. The CLI tool help
  text as well as the documentation has been updated to suggest commands that
  work in ESLint 6.0 as well as in ESLint 5 and older. (Instead of eslint --print-config ., use eslint --print-config path/to/main.js.)

... (truncated)

Commits

• 2a36c6d eslint-config-prettier v6.3.0
• 304380f Update npm packages
• 682e571 Merge pull request #107 from ybiquitous/typescript-brace-style
• 9525885 Disable @typescript-eslint/brace-style rule
• b1bdbfd eslint-config-prettier v6.2.0
• 8572571 Update npm packages
• df2ea3b Sort readme links
• 99f4d94 Merge pull request #105 from ybiquitous/support-typescript-eslint-quotes
• 4890c0a Disable @typescript-eslint/quotes rule
• 793aa76 Update npm packages
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #411.