Bump prettier from 2.1.2 to 2.2.0 (#94)

Bumps [prettier](https://github.com/prettier/prettier) from 2.1.2 to 2.2.0.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/master/CHANGELOG.md)
- [Commits](prettier/prettier@2.1.2...2.2.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -19,7 +19,7 @@
     "lodash": "^4.17.20",
     "node-opencc": "^2.0.1",
     "node-sass": "^4.14.1",
-    "prettier": "^2.1.2",
+    "prettier": "^2.2.0",
     "prop-types": "^15.7.2",
     "react": "^16.14.0",
     "react-bootstrap": "^1.4.0",