Email signature cannot be templated

[ShadowJonathan]

Information about bug

We're trying to use the new email signature, to provide a consistent signature for all our agents.

However, we're working on multiple teams, and we'd like to have a different logos etc. per team. Some people are on multiple teams, and so the image should change depending on what "hat" they have on.

Version

Frappe: v16.18.2
Helpdesk: 1.22.2

Installation method

docker

Relevant log output / Stack trace / Full Error Message.

[ShadowJonathan]

cc @aerodeval, since i know you were working on this in #3188 :)

[aerodeval]

hey @ShadowJonathan this seems like a feature request so removing the bug label

[dankgarlic1]

@aerodeval are you working on this? if not I would like to work on this

[aerodeval]

@dankgarlic1 you can give it a try. Could you let me know how you will be implementing it?