chore(package.json): update scripts

Author: in-ch

.eslintignore

@@ -5,3 +5,4 @@ cypress/support/*
 lib/*
 node_modules/*
 **/node_modules/*
+/example

package.json

@@ -49,13 +49,12 @@
     "watch": "preconstruct watch",
     "prettier:check": "prettier --check .",
     "lint": "eslint . --ext .js,.jsx,.ts,.tsx",
-    "start:test": "cd docs && yarn start:test",
     "test": "yarn test:jest",
     "test:jest": "jest --coverage",
     "e2e": "concurrently --kill-others --success=first --names 'SERVER,E2E' 'yarn start:test' 'yarn test:cypress'",
     "type-check": "tsc --build packages/react-toggle-file-tree/tsconfig.json",
-    "precommit": "yarn run type-check",
-    "postinstall": "preconstruct dev && manypkg check",
+    "precommit": "yarn run type-check & yarn lint & yarn test",
+    "postinstall": "preconstruct dev",
     "version": "changeset && changeset version",
     "release": "yarn test && yarn build && changeset publish"
   },