style: Removes ESLint + Prettier and adds Biome (#5)

.github/workflows/pr.yml

@@ -0,0 +1,18 @@
+name: "Run formatter/linter on PR"
+on:
+  pull_request:
+
+jobs:
+  checks:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v2
+        with:
+          node-version: 18.x
+      - name: Install dependencies
+        run: npm ci
+      - name: Run checks
+        run: npm run biome:check

biome.json

@@ -0,0 +1,22 @@
+{
+	"$schema": "https://biomejs.dev/schemas/1.5.3/schema.json",
+	"organizeImports": {
+		"enabled": true
+	},
+	"linter": {
+		"enabled": true,
+		"rules": {
+			"recommended": true
+		}
+	},
+  "formatter": {
+    "enabled": true
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "single",
+      "indentWidth": 2,
+      "semicolons": "always"
+    }
+  }
+}