Getting yarn berry working.

Signed-off-by: Cliff Hill <xlorep@darkhelm.org>

.gitignore

@@ -289,6 +289,7 @@ dist
 .yarn/unplugged
 .yarn/build-state.yml
 .yarn/install-state.gz
+.yarn/releases
 .pnp.*
 
 # Vite

frontend/.yarnrc.yml

@@ -0,0 +1,3 @@
+nodeLinker: node-modules
+
+yarnPath: .yarn/releases/yarn-4.10.3.cjs

frontend/package.json

@@ -44,5 +44,6 @@
     "vitest": "^3.2.4",
     "vue-eslint-parser": "^9.4.0",
     "vue-tsc": "^2.0.0"
-  }
+  },
+  "packageManager": "yarn@4.10.3"
 }