Search refactoring to better utilize index and improve capabilities #3048

Job	Run time
Build frontend unit test image	1m 12s
Build frontend e2e test image	4m 55s
Build backend e2e test image	2m 24s
lint_core	12s
Lint mwdb-core web sources	46s
Build mwdb-core core image	2m 53s
Build mwdb-core web image	41s
Perform frontend unit tests	33s
Perform backend e2e tests	6m 12s
Perform frontend e2e tests	3m 22s
Push images on Docker Hub	0s
Push test images on Docker Hub	0s
	23m 10s

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