replace rome.json with biome.json

CONTRIBUTING.md

@@ -83,7 +83,7 @@ issue)
 We use the following tools to enforce linting rules, formatting and spell
 checking
 
-- [`yarn lint`](https://rome.tools/)
+- [`pnpm lint`](https://biomejs.dev/)
 - [`cspell`](https://cspell.org/)
 
 We encourage adding the [recommended](.vscode/extensions.json) (or similar)

biome.json

@@ -0,0 +1,40 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.0.0/schema.json",
+  "files": {
+    "ignore": [
+      "**/node_modules",
+      ".next",
+      "public",
+      "dist",
+      "**/*.json",
+      "*.yaml",
+      ".vscode"
+    ]
+  },
+  "organizeImports": {
+    "enabled": true
+  },
+  "formatter": {
+    "enabled": true,
+    "formatWithErrors": false,
+    "indentStyle": "space",
+    "indentSize": 2,
+    "lineWidth": 80
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true,
+      "correctness": {
+        "noUnusedVariables": "error"
+      }
+    }
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "single",
+      "trailingComma": "all",
+      "semicolons": "always"
+    }
+  }
+}