[REQUEST] Add a command line option to set the namespace rofi uses

[Jakobuo]

Before opening a feature request

• [x] I checked the next branch to see if the feature has already been implemented
• [x] I searched existing reports to see if it is already requested.

What is the user problem or growth opportunity you want to see solved?

I think it would be useful to be able to change the namespace rofi uses on the command line.

How do you know that this problem exists today? Why is this important?

Usecase: I use rofi with keepmenu on niri. If it was possible to set the namespace rofi uses on the command line, I could use it to block keepmenu from screensharing while leaving normal rofi as is. This feature could be used in a similar manner for other things, like in this issue.

Who will benefit from it?

It would help anyone who wants to use rofi for several things that would benefit from different layer rules.

Rofi version (rofi -v)

1.7.8+wayland1

Configuration

https://gist.github.com/Jakobuo/774a17685167ea7f4b952607ff558400

Additional information

I don't think my config and theme are relevant to this feature request.