[telegram] Add support for MarkdownV2

[lsiepel]

Fixes: #13723

[cweitkamp]

@openhab/add-ons-maintainers How can I request a review from Copilot?

[Copilot]

Pull Request Overview

This PR adds support for the MarkdownV2 parse mode in the Telegram binding, addressing issue #13723. MarkdownV2 is a newer formatting option provided by the Telegram Bot API.

Key Changes:

• Added MarkdownV2 as a new parse mode option alongside existing Markdown and HTML options
• Updated documentation and error messages to include MarkdownV2 in the list of supported formatting modes

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
thing-types.xml	Added MarkdownV2 option to parseMode configuration parameter and updated description
telegram.properties	Added MarkdownV2 localization entry and updated parseMode description
TelegramHandler.java	Updated error message to include MarkdownV2 in list of allowed values
README.md	Updated documentation table to include MarkdownV2 as a supported parse mode value

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[lsiepel]

@openhab/add-ons-maintainers How can I request a review from Copilot?

It is offered as reviewer like anyone else. It only pops up when you have a copilot pro subscription

[cweitkamp]

Okay, thank you for the information. Meaning using Copilot for reviews is a personal privilege and not an openHAB tool.

[wborn]

GitHub gives you free access to Copilot Pro if they consider you to be an open-source maintainer, see:

https://docs.github.com/en/copilot/how-tos/manage-your-account/get-free-access-to-copilot-pro

You'll get an e-mail if you qualify and then you can request reviews from Copilot.

[jlaur]

GitHub gives you free access to Copilot Pro if they consider you to be an open-source maintainer

I wonder if openHAB is not considered popular, or if I'm not considered a maintainer.

[lolodomo]

LGTM, thank you

[lsiepel]

GitHub gives you free access to Copilot Pro if they consider you to be an open-source maintainer

I wonder if openHAB is not considered popular, or if I'm not considered a maintainer.

Same mailadres for both copilot and github ? I was granted it automatically based on omy openHAB membership.