The WebUI IDS log did not display the rule name for alerts
where a signature with a five digit number was triggered
(some Emerging Threats signatures are using them).
Changing the regular expression so it will match on five
digit SIDs, too.
Fixes #11519.
Signed-off-by: Peter Müller <peter.mueller@link38.eu> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>