fix: sonarqube issues

- remove sonarqube token from properties file (will be provided via GH secret)
- add additional coverage paths

sonar-project.properties

@@ -1,7 +1,7 @@
 sonar.projectKey=book_me
 sonar.projectName=book_me
-sonar.sources=client/src,common/src,backend
-sonar.tests=common/src
+sonar.sources=client/src,common/src,backend/src
 sonar.test.inclusions=**/test/*.spec.ts
 sonar.coverage.exclusions=**/test/*.spec.ts
-sonar.javascript.lcov.reportPaths=common/coverage/lcov.info
+sonar.javascript.lcov.reportPaths=**/coverage/lcov.info
+sonar.host.url=http://hopper.fh-swf.de/sonarqube