message: Change Policy Handler Resolver
  #### Description
  This PR changes policy handler's resolver to add `prettier:fix` into
  every `package.json`'s `scripts` field.
diff: @@ -654,6 +654,8 @@ export const handlers: Handler[] = [
  ];
  function addPrettier(json: Record<string, any>) {
  + const hasFormatScriptResolver = Object.prototype.hasOwnProperty.call(json.scripts, "format");
  +
  const hasPrettierScriptResolver = Object.prototype.hasOwnProperty.call(
  json.scripts,
  "prettier",
  @@ -664,12 +666,22 @@ function addPrettier(json: Record<string, any>) {
  "prettier:fix",
  );
  - const hasFormatScriptResolver = Object.prototype.hasOwnProperty.call(json.scripts, "format");
  + if (hasFormatScriptResolver || hasPrettierScriptResolver || hasPrettierFixScriptResolver) {
  + const formatScript = json["scripts"]["format"]?.includes("lerna");
  + const prettierScript = json["scripts"]["prettier"]?.includes("--ignore-path");
  + const prettierFixScript = json["scripts"]["prettier:fix"]?.includes("--ignore-path");
  - if (hasPrettierScriptResolver || hasPrettierFixScriptResolver || hasFormatScriptResolver) {
  + if (!formatScript) {
  json["scripts"]["format"] = "npm run prettier:fix";
  +
  + if (!prettierScript) {
  json["scripts"]["prettier"] = "prettier --check .";
  - json["scripts"]["prettier:"] = "prettier --write .";
  + }
  +
  + if (!prettierFixScript) {
  + json["scripts"]["prettier:fix"] = "prettier --write .";
  + }
  + }
  }
  }
  