Replace Rome with Biome (#4)

The Rome tools project has been abandoned in favour of the community fork Biome: https://biomejs.dev/blog/annoucing-biome

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v2
       - name: Installing node_modules
         run: npm install
-      - name: Running Rome
+      - name: Running lint/format check
         run: npm run check
 
   # check-models:

CONTRIBUTING.md

@@ -43,7 +43,7 @@ If you want a feature, you can open a discussion via the [issues](https://github
 
 > Any color you like.
 
-We use Rome for linting https://www.npmjs.com/package/rome
+We use Biome for linting and formatting: https://www.npmjs.com/package/@biomejs/biome
 
 You can run linting and formatting using the scripts:
 

rome.json → biome.json

@@ -1,10 +1,11 @@
 {
-  "$schema": "https://docs.rome.tools/schemas/12.1.3/schema.json",
+  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
   "organizeImports": {
     "enabled": false
   },
   "formatter": {
     "indentStyle": "space",
+    "indentSize": 2,
     "ignore": ["./dist"]
   },
   "javascript": {