Cover Media and Jobs controllers and handlers with tests

### Description
1. Write integration tests for the following endpoints in the listed controllers.
2. Write unit tests for the corresponding handlers.
3. Identify and fix any issues flagged by SonarQube rules within the provided directories.

JobController
1. GET / - Get All Jobs
2. GET / - Get All Short Jobs
3. GET / - Get Active Jobs
4. GET /{id:int} - Get Job By ID
5. DELETE /{id:int} - Delete Job
6. PUT / - Update Job
7. PUT / - Change Job Status

ImageController
1. GET /{id:int} - GetBaseImage
2. POST / - Create
3. PUT / - Update
4. DELETE /{id:int} - Delete

StreetcodeArtController
1. GET /{streetcodeId:int} - GetPageByStreetcodeId

StreetcodeArtSlideController
1. GET /{streetcodeId:int} - GetPageByStreetcodeId
2. GET /{streetcodeId:int} - GetAllCountByStreetcodeId

AudioController
1. GET /{id:int} - GetBaseAudio
2. POST / - Create
3. PUT / - Update
4. DELETE /{id:int} - Delete