Added vitest (#5)

* Moved eslint and @nuxt/eslint to devDependencies

* Added vitest to project and 1 test

* Tweaked Sonar workflow in order to run tests and coverage

* Removed offending config line

.github/workflows/sonar.yml

@@ -18,6 +18,18 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+      - name: Setup node environment
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: "npm"
+      - name: Install dependencies
+        run: npm ci
+      - name: Run tests and generate coverage
+        run: npm run coverage
+        continue-on-error: true
+        env:
+          CI: true
       - name: SonarQube Scan
         uses: SonarSource/sonarqube-scan-action@v6
         env: