Fix messaging-related issues, webhooks, folia-related beacon exception, add BannerControlSessionEndedEvent

[ewof]

• show help if args length is 0 (would throw exception before)

• fix besieged town name not getting sent to ingame translatable on siege remove

• fix session end webhook notification before if a session ended and it had battles there'd be an exception and no webhook notification but now it works

• return from send notification if not active

• strip formatting from event messages properly

• fix beacon exceptions on folia

• add BannerControlSessionEndedEvent

Description:

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New Nodes/Commands/ConfigOptions:

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Relevant Issue ticket:

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• [X] I have tested this pull request for defects on a server.

By making this pull request, I represent that I have the right to waive copyright and related rights to my contribution, and agree that all copyright and related rights in my contributions are waived, and I acknowledge that the TownyAdvanced organization has the copyright to use and modify my contribution under the SiegeWar License for perpetuity.

[Goosius1]

Re-review complete. Just 1 comment

[LlmDl]

In the future this sort of PR should be broken up into groups:

• Fix messages
• Fix Webhooks
• Fix Folia-beacon exception
• Add new events

This will make the final release page easier to digest as PR titles can be more descriptive.