Added support for Telegram Business bots. Telegram webhooks from such bots include the business_message field, which we transform into a standard message for Chatwoot. This PR also modifies how we handle replies, attachments, and image uploads when working with Telegram Business bots.
demo: https://drive.google.com/file/d/1Yz82wXBVRtb-mxjXogkUju4hlJbt3qyh/view?usp=sharing&t=4Fixes#10181
- this ensures that the markdown formatted messages from the Chatwoot dashboard will render consistently in telegram UI for the supported types like bold, italics, links etc
This PR adds support for Markdown in the telegram API for send message. The dashboard uses commonmark syntax for markdown but telegram is using MarkdownV2.
More info - https://core.telegram.org/bots/api#markdownv2-style
Adds support for bold - *bold*, _italic text_, __underline__, ~strikethrough~
Co-authored-by: Sojan Jose <sojan@pepalo.com>
