fix(core): Account for activation error caused by follower main
instance
#7735
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This PR accounts for the edge case where the user on a FE connected to a follower
main
instance leads to an activation failure. The follower performs the DB update, skips activation inActiveWorkflows
, instructs leader to perform activation inActiveWorkflows
, leader fails to activate and reverts the DB update and communicates activation error to follower, which broadcasts the event to all connected FEs, which update their stores and display the activation error.To reproduce, create a workflow with a trigger with an invalid credential and attempt to activate on both leader and follower to trigger the activation error - behavior should be identical on both.