Expand the character limit of error messages in Event log list (#4830)

modules/system/models/EventLog.php

@@ -85,6 +85,9 @@ class EventLog extends Model
             return $match[1];
         }
 
-        return Str::limit($this->message, 100);
+        // Get first line of message
+        preg_match('/^([^\n\r]+)/m', $this->message, $matches);
+
+        return Str::limit($matches[1] ?? '', 500);
     }
 }