set server broadcast message to type headline

Description

Until now, server messages do not have the type attribute.
This could be problematic to some clients, that theese message are totaly ignored.
https://github.com/igniterealtime/Openfire/pull/1787

Environment

None
Fixed

Assignee

Guus der Kinderen

Reporter

Daryl Herzmann

Labels

None

Expected Effort

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Ignite Forum URL

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Components

Fix versions

Affects versions

Priority

Major
Configure