Migrate to Yarn Berry

.gitignore

@@ -4,4 +4,11 @@ node_modules
 dist
 yarn-error.log
 .vscode
-config.env
+config.env
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions

.yarnrc.yml

@@ -0,0 +1,7 @@
+nodeLinker: node-modules
+
+plugins:
+  - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.cjs
+    spec: "@yarnpkg/plugin-interactive-tools"
+
+yarnPath: .yarn/releases/yarn-3.5.0.cjs

package.json

@@ -20,5 +20,6 @@
     "eslint": "^7.27.0",
     "eslint-plugin-import": "^2.23.3"
   },
-  "version": "0.0.0"
+  "version": "0.0.0",
+  "packageManager": "yarn@3.5.0"
 }