Add initial GH workflow for frontend test suite

[ci skip]

.github/workflows/test-frontend-unit.yml

@@ -0,0 +1,45 @@
+name: "Frontend test suite"
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - dev
+      - release/*
+    paths:
+      - 'frontend/**/*.{ts,js,json}'
+  pull_request:
+    types: [opened, reopened, synchronize]
+    paths:
+      - 'frontend/**/*.{ts,js,json}'
+
+permissions:
+  contents: read
+
+defaults:
+  run:
+    working-directory: ./frontend
+
+jobs:
+  units:
+    name: Units
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '18.13'
+          cache: npm
+          cache-dependency-path: frontend/package-lock.json
+
+      - name: Install Dependencies
+        id: npm-i
+        run: npm i
+
+      - name: Test (Angular)
+        id: npm-test
+        run: npm test -- --code-coverage