Utilize `EventStatus` for message state #92

All 585 tests pass, 4 skipped in 8m 6s

589 tests +2 585 ✔️ +2 8m 6s ⏱️ -8s
    1 suites ±0     4 💤 ±0
    1 files ±0     0 ❌ ±0

Results for commit 2ef2c55. ± Comparison against earlier commit c6c17c5.