Add tag search to full search project listing (it was removed)

[matusdrobuliak66]

Full-text search on projects provides an option to filter project tags. This was temporarily removed to optimize project listing: #7475.

We need to perform the filtering either on the frontend (as it is currently done in the normal project listing) or implement this functionality in the backend. However, we must be careful with the implementation to ensure the database engine does not execute suboptimal queries.

[matusdrobuliak66]

Unless this is no longer needed and we're okay with tags being searched on the frontend, I will go ahead and close the issue.