Added default test and sonar-project.properties for the Frontend

microservices/frontend/sonar-project.properties

+sonar.projectKey=frontend
+sonar.projectName=Frontend Microservice
+sonar.projectVersion=1.0-SNAPSHOT
+sonar.sources=src
+sonar.tests=test
+sonar.language=ts
+sonar.typescript.tsconfigPath=tsconfig.json
+sonar.sourceEncoding=UTF-8
+sonar.exclusions=node_modules/**,target/**,prisma/migrations/**
+sonar.test.inclusions=**/*.test.ts
+sonar.typescript.lcov.reportPaths=coverage/lcov.info
\ No newline at end of file

microservices/frontend/test/service.test.ts

+// Jest test for the service
+test("Jest is running", () => {
+    expect(1).toBe(1);
+});
+