chore: add prettier.

Author: jaywcjlove

.husky/pre-commit

@@ -0,0 +1,4 @@
+#!/usr/bin/env sh
+. "$(dirname "$0")/_/husky.sh"
+
+npx lint-staged

.prettierignore

@@ -0,0 +1,10 @@
+**/*.md
+**/*.svg
+**/*.ejs
+**/*.yml
+package.json
+node_modules
+dist
+build
+lib
+test

.prettierrc

@@ -0,0 +1,11 @@
+{
+  "singleQuote": true,
+  "trailingComma": "all",
+  "printWidth": 120,
+  "overrides": [
+    {
+      "files": ".prettierrc",
+      "options": { "parser": "json" }
+    }
+  ]
+}