chore: add more instrumented tests

[mattinannt]

This pull request introduces a new instrumented test class for FormbricksApiService and updates the SonarQube configuration to exclude additional files from code coverage analysis.

Exclusion of Formbricks Fragment:
It is a common and accepted practice in Android development to exclude pure UI components from code coverage metrics, focusing instead on testing business logic, data handling, and core functionality. This ensures that coverage metrics reflect the quality of the code that is most critical to the application's correctness and maintainability.

Testing Enhancements:

• Added a new instrumented test class, FormbricksApiServiceInstrumentedTest, in android/src/androidTest/java/com/formbricks/android/network/FormbricksApiServiceInstrumentedTest.kt. This class includes a basic setup method and a test to verify the initialization of the FormbricksApiService without exceptions.

Configuration Updates:

• Updated sonar-project.properties to exclude the FormbricksFragment.kt file from code coverage analysis.

[sonarqubecloud]

Quality Gate failed

Failed conditions
75.0% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud