[Feature] Allow to specify format (i.e. include appname in notification)

[leon-erd]

Please read through the README and the Man pages before submitting
Please also make sure that there isn't any prior issue describing this feature

Is your feature request related to a problem? Please describe.
It would be nice for me to know which app is sending the notification.
A notification could be coming through my phone (via KDE Connect for example) or from my computer. They could have the exact same summary and body but would have different appnames.

Describe the solution you'd like
I would like the option to define in my config if the appname should be shown in the notifications or not.
Or to set a markup format similar to dunst. The following is copied from the dunstrc:
# The format of the message. Possible variables are:
# %a appname
# %s summary
# %b body
# %i iconname (including its path)
# %I iconname (without its path)
# %p progress value if set ([ 0%] to [100%]) or nothing
# %n progress value if set without any extra characters
# %% Literal %
# Markup is allowed
format = "%s\n%b\n%a"

The appname could also be used to infer an app icon like it is done in linux_notification_center which looks really nice:

Screenshotted from the linux_notification_center README

Additional context
Thanks for the overall really nice program!

[ErikReider]

#61 would make it easier to identify which notifications are sent by which application

[leon-erd]

If it would look like the screenshots from cosmic (with the icon and the app name for each notification / group) that would be perfect! Really looking forward seeing this!

[ErikReider]

If it would look like the screenshots from cosmic (with the icon and the app name for each notification / group) that would be perfect! Really looking forward seeing this!

#345 check this PR out :)

[leon-erd]

I have already seen the PR :) However, in the video, there are no icons/app names for single notifications yet. I'm excited to test and see the changes once the PR is ready to use.

[ErikReider]

I have already seen the PR :) However, in the video, there are no icons/app names for single notifications yet. I'm excited to test and see the changes once the PR is ready to use.

This should solve your issue :)

[leon-erd]

That looks good! But will this also be available for single notifications that are not part of a group?

[ErikReider]

That looks good! But will this also be available for single notifications that are not part of a group?

Nope, couldn't find a way to make it look good. If you can find a nice design, I'll consider it :)

[leon-erd]

I think the Cosmic design actually looks really good and is pretty much what I am looking for.

I like it with the app name in a smaller font size above the bold summary. I think an option in the config to enable/disable the icon and app name would be perfect.
I also like the design of the linux_notification_center with the icon and app name in the bottom right as attached above.

[ErikReider]

This is a work in progress