--config-json not working

[pierricgimmig]

Running ./terminator --config-json data/layout-files-examples/2-3-grid.json is not working, I get the default window instead of the requested layout. I'm running on Ubuntu 22.04. Here's the output when adding the -d flag:

DBusService::prepare_attributes: Checking for bus name availability: net.tenshu.Terminator23558193cd9818af7fe4d2c2f5bd9d00f
DBusService::prepare_attributes: bus name unavailable: net.tenshu.Terminator23558193cd9818af7fe4d2c2f5bd9d00f
noclass::<module>: Unable to become master process, operating via DBus
noclass::<module>: Requesting a new window

The call to proxy.RequestName(BUS_NAME, dbus.UInt32(flags)) returns 3

A workaround is to use --no-dbus: ./terminator --config-json data/layout-files-examples/2-3-grid.json --no-dbus.

Another workaround is to ensure that the BUS_NAME variable always has a new unique value, appending a timestamp for example, but this involves changing code in ipc.py. By default, BUS_NAME is always the same, which I think is the root of the issue.

This seems to be the same issue described in #850

[pierricgimmig]

I just realized this is a known issue. From https://terminator-gtk2.readthedocs.io/en/latest/advancedusage.html:

Running a single instance of Terminator will cause problems if you are trying to launch a [layout](https://terminator-
gtk2.readthedocs.io/en/latest/layouts.html#layouts), when an instance is already running, so when configuring a program, 
script or menu item to launch a layout, you need to remember to include the -u option that will disable the DBus for that 
instance. [The Layout Launcher](https://terminator-gtk2.readthedocs.io/en/latest/layouts.html#layout-launcher) does this for 
you, and as a result any launched layout is running without DBus, and cannot be controlled with DBus.

Doing this automatically would be nice...