chore: add github branch build

.github/workflows/npm-build-branches.yml

@@ -0,0 +1,22 @@
+name: Build branch
+
+on:
+  push:
+    branches-ignore:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+      - run: npm ci
+      - name: Install Playwright Browsers
+        run: npx playwright install --with-deps
+      - run: npm run build --if-present
+      - run: npm test
+

.github/workflows/npm-build.yml

@@ -0,0 +1,21 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+      - run: npm ci
+      - name: Install Playwright Browsers
+        run: npx playwright install --with-deps
+      - run: npm run build --if-present
+      - run: npm test

README.md

@@ -1,5 +1,7 @@
 # GetMyDeck-App
 
+![Build](https://github.com/chrisingenhaag/getmydeck-app/actions/workflows/gradle-build.yml/badge.svg?branch=main)
+
 SvelteKit based web frontend for [getmydeck.ingenhaag.dev](https://getmydeck.ingenhaag.dev)
 
 ## Developing