added "members" for an event that help the admins to moderate. members must be invited via email.

app/Models/Event.php

@@ -107,6 +107,11 @@ class Event extends Model
         return $this->hasMany(EventJoinToken::class);
     }
 
+    public function members(): HasMany
+    {
+        return $this->hasMany(EventMember::class);
+    }
+
     public function hasActivePackage(): bool
     {
         return $this->eventPackage && $this->eventPackage->isActive();