Fix #456 Fix #568 Fix #595 Close #538: authuser parameter missing in Google Meet links

Author: leits

MeetingBar/EventStores/Calendar.swift

@@ -12,7 +12,7 @@ class MBCalendar: Hashable {
     let title: String
     let ID: String
     let source: String
-    let email: String?
+    var email: String?
     var selected = false
     let color: NSColor
 

MeetingBar/EventStores/EKEventStore.swift

@@ -74,6 +74,10 @@ extension EKEventStore: EventStore {
             for rawEvent in EKEventStore.shared.events(matching: predicate) {
                 let calendar = calendars.first { $0.ID == rawEvent.calendar.calendarIdentifier }!
 
+                if calendar.email == nil, let email = rawEvent.attendees?.first(where: { $0.isCurrentUser })?.safeNSURL?.resourceSpecifier {
+                    calendar.email = email
+                }
+
                 var status: MBEventStatus
                 switch rawEvent.status {
                 case .confirmed: