Add testing script and vitest as a dev dependency in package.json

.gitea/workflows/test.yaml

@@ -0,0 +1,19 @@
+name: Test
+
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  test:
+    name: Run Tests
+    runs-on: pi
+    steps:
+    - uses: actions/checkout@v6
+    - uses: actions/setup-node@v4
+      with:
+        node-version: '16'
+    - run: npm install
+      shell: bash
+    - run: npm test
+      shell: bash