chore: add prettier-config-atomic

Author: aminya

.npmrc

@@ -1,3 +1,4 @@
 public-hoist-pattern[]=*
 package-lock=false
-lockfile=true
+lockfile=true
+prefer-frozen-lockfile=false

.prettierignore

@@ -1,5 +1,4 @@
 node_modules
-package.json
 package-lock.json
 pnpm-lock.yaml
 coverage

package.json

@@ -23,6 +23,7 @@
     "prepare": "npm run clean && npm run compile",
     "test": "npm run compile && atom --test build/test"
   },
+  "prettier": "prettier-config-atomic",
   "atomTestRunner": "./test/runner",
   "dependencies": {
     "atom-ide-base": "^2.4.0",
@@ -45,6 +46,7 @@
     "eslint-config-atomic": "1.10.1",
     "mocha": "^8.2.1",
     "mocha-appveyor-reporter": "^0.4.2",
+    "prettier-config-atomic": "^2.0.1",
     "shx": "^0.3.3",
     "sinon": "^9.2.4",
     "typescript": "~4.1.3"