[Task4.4] add test cases for meal type filter

[edykim]

• added user story 4 scenario test cases

We don't have specific unit tests since filtering is done from the UI. Performed manual testing on filtering and worked.

Close #154

[edykim]

I made this PR as a draft. Will update when task 4.2 is merged.

[github-actions[bot]]

Code Coverage

Overall Project	73.65%	:green_apple:

There is no coverage information present for the Files changed

[edykim]

Ready for review.