Add biome formatting for js and css

Author: JelteF

Makefile

@@ -1,8 +1,11 @@
 format:
 	ruff format
+	npx @biomejs/biome format --write
 
 lint:
 	ruff check
+	npx @biomejs/biome check
 
 lint-fix:
 	ruff check --fix
+	npx @biomejs/biome check --fix

biome.json

@@ -0,0 +1,36 @@
+{
+    "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+    "vcs": {
+        "enabled": false,
+        "clientKind": "git",
+        "useIgnoreFile": false
+    },
+    "files": {
+        "ignoreUnknown": true,
+        "ignore": [],
+        "include": [
+            "media/commitfest/js/commitfest.js",
+            "media/commitfest/css/commitfest.css",
+            "biome.json"
+        ]
+    },
+    "formatter": {
+        "enabled": true,
+        "indentStyle": "space",
+        "indentWidth": 4
+    },
+    "organizeImports": {
+        "enabled": true
+    },
+    "linter": {
+        "enabled": true,
+        "rules": {
+            "recommended": true
+        }
+    },
+    "javascript": {
+        "formatter": {
+            "quoteStyle": "double"
+        }
+    }
+}