chore: use yarn (modern) as package manager

.gitignore

@@ -22,3 +22,13 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+
+
+## yarn
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions

.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

package.json

@@ -23,5 +23,6 @@
     "eslint-plugin-react-refresh": "^0.4.19",
     "globals": "^16.0.0",
     "vite": "^6.3.1"
-  }
+  },
+  "packageManager": "yarn@4.6.0"
 }