add prettier task

package-lock.json

@@ -21,6 +21,7 @@
         "jsdoc-json": "^2.0.2",
         "jsdoc-to-markdown": "^7.1.1",
         "lerna": "^4.0.0",
+        "prettier": "^2.8.1",
         "rollup-plugin-visualizer": "^5.8.1",
         "vitest": "^0.21.1"
       }
@@ -9170,6 +9171,21 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/prettier": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.1.tgz",
+      "integrity": "sha512-lqGoSJBQNJidqCHE80vqZJHWHRFoNYsSpP9AjFhlhi9ODCJA541svILes/+/1GM3VaL/abZi7cpFzOpdR9UPKg==",
+      "dev": true,
+      "bin": {
+        "prettier": "bin-prettier.js"
+      },
+      "engines": {
+        "node": ">=10.13.0"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    },
     "node_modules/process-nextick-args": {
       "version": "2.0.1",
       "license": "MIT"
@@ -18490,6 +18506,12 @@
     "prelude-ls": {
       "version": "1.1.2"
     },
+    "prettier": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.1.tgz",
+      "integrity": "sha512-lqGoSJBQNJidqCHE80vqZJHWHRFoNYsSpP9AjFhlhi9ODCJA541svILes/+/1GM3VaL/abZi7cpFzOpdR9UPKg==",
+      "dev": true
+    },
     "process-nextick-args": {
       "version": "2.0.1"
     },