Add muted field to errors

Author: crbelaus

lib/error_tracker/schemas/error.ex

@@ -22,6 +22,7 @@ defmodule ErrorTracker.Error do
     field :status, Ecto.Enum, values: [:resolved, :unresolved], default: :unresolved
     field :fingerprint, :binary
     field :last_occurrence_at, :utc_datetime_usec
+    field :muted, :boolean
 
     has_many :occurrences, ErrorTracker.Occurrence