It should be possible to manually post Notices

Current Situation

With JOC-1874 the bulk operation to post Notices for all expected Notices of a Notice Board has been introduced.
This change causes the problem that it is no longer possible to manually post a Notice.

There is no input field to specify the Notice ID.
Posting the Notice without Notice ID is accepted from the /notices/post endpoint

Desired Behavior

When manually posting a Notice there should be an input field to specify the Notice ID.
The value for the lifetime of the Notice should be preset from the setting in the Notice Board.
The /notices/post endpoint should not accept requests that do not specify the Notice ID.