Update dependency prettier to v1.18.0

Author: renovate-bot

package.json

@@ -25,7 +25,7 @@
     "npm-run-all": "4.1.5",
     "postcss-cli": "6.1.2",
     "postcss-preset-env": "6.6.0",
-    "prettier": "1.17.0",
+    "prettier": "1.18.0",
     "rollup": "1.10.1",
     "rollup-plugin-node-resolve": "4.2.4",
     "serve": "11.0.0"

yarn.lock

@@ -4055,10 +4055,10 @@ postcss@^7.0.14:
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-prettier@1.17.0:
-  version "1.17.0"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.17.0.tgz#53b303676eed22cc14a9f0cec09b477b3026c008"
-  integrity sha512-sXe5lSt2WQlCbydGETgfm1YBShgOX4HxQkFPvbxkcwgDvGDeqVau8h+12+lmSVlP3rHPz0oavfddSZg/q+Szjw==
+prettier@1.18.0:
+  version "1.18.0"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.18.0.tgz#d1701ca9b2941864b52f3262b35946d2c9cd88f0"
+  integrity sha512-YsdAD29M0+WY2xXZk3i0PA16olY9qZss+AuODxglXcJ+2ZBwFv+6k5tE8GS8/HKAthaajlS/WqhdgcjumOrPlg==
 
 pretty-hrtime@^1.0.3:
   version "1.0.3"