Add busy count for integration tests

Integration tests need to be notified when Lazygit is idle so they can progress to the next assertion / user action.

pkg/integration/tests/commit/reword.go

@@ -61,6 +61,7 @@ var Reword = NewIntegrationTest(NewIntegrationTestArgs{
 		t.Views().Commits().
 			Lines(
 				Contains(wipCommitMessage),
+				Contains(commitMessage),
 			)
 	},
 })