Remove port form application.properties and change port in Dockerfile

Implement /actuator/health endpoint for API health checks

Correct the port on Dockerfile and fix failing test

Remove video-only filtering from search

Remove unsed imports, change e.getCause() to e

Create CommentController class

Refactor comments service functions into their own service class

Replace mocking with StreamInfoItem subclass in SearchResultDTOTest

Update ExtractionException test for VideoStreamingService

Update Search Page DTO tests to work with updated Search Page DTO class

Add POST, PUT, and DELETE requests to allowedMethods in CorsConfig class

Update search service tests to work with new search page functionality

Update search controller tests to work with upated search controller

Fix /page next page functionality for search

Add unit tests for ChannelService