eslint@9, prettier (#105)

* Update build.yml to allow pushes to any branch

Remove branch restriction for push events, which prevents forked projects from running CI checks prior to creating a PR.

* eslint, prettier config only

.github/workflows/build.yml

@@ -18,3 +18,4 @@ jobs:
     - name: Install dependencies
       run: npm i
     - run: npm run build
+    - run: npm run lint:ci