Multi-Level Message Aliases

[CodeShellDev]

Is your feature request related to a problem? Please describe.
Many Services nest their notification content inside of multiple json dictionaries or array in order to access them you would need to use Message Aliases, which at the time only allow root dictionary keys so data.msg as an example wouldn‘t work.

Describe the solution you'd like
Allow the use of dots in Message Aliases to allow for this functionality.

[CodeShellDev]

Maybe build further upon the Body Injection aswell, but this may be out of scope…