Add: Vite Electron Builder template

From https://github.com/cawa-93/vite-electron-builder

webapp/.github/workflows/tests.yml

@@ -0,0 +1,41 @@
+name: Tests
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'packages/**'
+      - 'tests/**'
+      - 'package-lock.json'
+      - '.github/workflows/tests.yml'
+  pull_request:
+    paths:
+      - 'packages/**'
+      - 'tests/**'
+      - 'package-lock.json'
+      - '.github/workflows/tests.yml'
+
+defaults:
+  run:
+    shell: 'bash'
+
+jobs:
+  e2e:
+    strategy:
+      matrix:
+        os: [ windows-latest ]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 16 # Need for npm >=7.7
+          cache: 'npm'
+
+      # TODO: Install not all dependencies, but only those required for this workflow
+      - name: Install dependencies
+        run: npm ci
+
+      - run: npm test