[Feature]: add source to Shelly Dimmer

[Zefau]

I'm sure that

• This issue is still present in the current beta version of this adapter
• There is no other (open) issue with the same topic (use the search!)
• This issue is not described in the adapter documentation / FAQ (read the docs!)

Shelly device

No response

Shelly firmware version

No response

Protocol

MQTT

The problem

source is not available for Shelly Dimmer

iobroker.current.log (in debug mode!)

No response

Version of nodejs

20

Version of ioBroker js-controller

v7.0.2

Version of adapter

v8.4.0

[github-actions]

Thanks for reporting a new issue @Zefau!

1. Please make sure your topic is not covered in the documentation
2. Please attach all necessary log files (in debug mode!), screenshots and other information to reproduce this issue
3. Search for the issue topic in other/closed issues to avoid duplicates!

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Otherwise this issue will be closed.

[klein0r]

For which device exactly?

[Zefau]

Shelly Dimmer and Dimmer 2 (the green devices) I am missing source.