Add support for telegram captions

[lekoOwO]

No description provided.

[codeclimate]

Code Climate has analyzed commit ff0bc21 and detected 0 issues on this pull request.

View more on Code Climate.

[lekoOwO]

I think this should be the real fix for #1649

[42wim]

For #1649 it's actually the comment as can be seen in the debug log there
Do you have messages where it's the caption?

[lekoOwO]

For #1649 it's actually the comment as can be seen in the debug log there
Do you have messages where it's the caption?

Oh I see.
For normal pictures like the one we send in group/supergroup/private chat, it should be captions.
Captions also applies to document, audio, video.... too.

[42wim]

We already do this here: https://github.com/42wim/matterbridge/blob/master/bridge/telegram/handlers.go#L350
The caption gets set as a Comment and in receiving bridges this comment will be added to the text, see example for discord https://github.com/42wim/matterbridge/blob/master/bridge/discord/discord.go#L339

Where specifically are you not getting the captions? Could you paste a debug log?