Alerts Redesign

[parmesant]

Fixes #XXXX.

Description

---

This PR has:

• been tested to ensure log ingestion and log query works.
• added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader.
• added documentation for new or modified features or behaviors.

[coveralls]

Pull Request Test Coverage Report for Build 12761088257

Details

• 0 of 1009 (0.0%) changed or added relevant lines in 11 files are covered.
• 11 unchanged lines in 6 files lost coverage.
• Overall coverage decreased (-1.3%) to 11.087%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/storage/localfs.rs	0	2	0.0%
src/rbac/role.rs	0	3	0.0%
src/query/mod.rs	0	7	0.0%
src/handlers/http/modal/query_server.rs	0	10	0.0%
src/storage/object_storage.rs	0	12	0.0%
src/handlers/http/modal/server.rs	0	35	0.0%
src/sync.rs	0	46	0.0%
src/alerts/target.rs	0	77	0.0%
src/handlers/http/alerts.rs	0	103	0.0%
src/alerts/alerts_utils.rs	0	277	0.0%

Files with Coverage Reduction	New Missed Lines	%
src/alerts/mod.rs	1	0.0%
src/metadata.rs	1	1.52%
src/event/mod.rs	1	0.0%
src/storage/object_storage.rs	2	0.0%
src/rbac/role.rs	2	0.0%
src/alerts/target.rs	4	0.0%

Totals
Change from base Build 12753189913:	-1.3%
Covered Lines:	2163
Relevant Lines:	19509

---

💛 - Coveralls