Simplify output of new approvals

[markusressel]

Is your feature request related to a problem? Please describe.
The output of new approval entries is a bit hard to read and contains unnecessary info.

Describe the solution you'd like
Cleanup output:

New image is available for resource homeassistant/home-assistant (2020.12.1 -> 2020.12.1).
Expires: mm/dd hh:mm:ss (Xh Ym Zs)

Note: use local timezone, so no +00:00 etc.
Note2: the full suite of properties should still be shown, but only when directly interacting with the bot

[markusressel]

The above is currently not possible, because the button action uses the message text (specifically the Id and Identifier) to approve or decline approvals. It would be possible to store the Id in the button action data itself, I am not sure if the Identifier is needed as well though, which would exceed the 64 bytes limit of telegram button data.