Re-enable GuestAgent for RD Networking

[Nino-K]

Guest Agent needs to run when the new Rancher Desktop Networking is enabled. It will be used to automate the port forwarding. Guest Agent will be listening for events from k8s, docker, and containerd's event API, upon discovery of the event it will be calling the port forwarding API on the host switch to open appropriate ports.

Related to: rancher-sandbox/rancher-desktop-agent#36
and
#4296

[mook-as]

LOG_DIR, GUESTAGENT_KUBERNETES, etc are all shared between all configs. Would it make sense to build the default map + overrides instead?

Or even merge rdNetworking || this.privilegedServiceEnabled, and just set GUESTAGENT_PRIVILEGED_SERVICE differently?

[Nino-K]

Yes, that would make more sense 👍

[mook-as]

The PR looks fine, but I'm having issues testing this (since this looks like it'll have non-obvious effects). When I turn on experimental network tunnel, wsl-init.pid isn't being written correctly.

That's not exactly requesting changes for this PR, but I can't tell if this would be a good change…

[Nino-K]

Tested this with both .exe and .msi and in all situations it was running as expected:
When RD networking is enabled on an admin install:

/usr/local/bin/rancher-desktop-guestagent -kubernetes=true -iptables=false -privilegedService=false -docker=true -containerd=false -k8sServiceListenerAddr=127.0.0.1 -debug 

When RD networking is enabled on a non-admin install:

/usr/local/bin/rancher-desktop-guestagent -kubernetes=true -iptables=false -privilegedService=false -docker=true -containerd=false -k8sServiceListenerAddr=127.0.0.1 -debug 

When RD networking is disabled on admin install:

/usr/local/bin/rancher-desktop-guestagent -kubernetes=true -iptables=false -privilegedService=true -docker=true -containerd=false -k8sServiceListenerAddr=127.0.0.1 -debug 

When RD networking is disabled on a non-admin install:

/usr/local/bin/rancher-desktop-guestagent -kubernetes=true -iptables=false -privilegedService=false -docker=true -containerd=false -k8sServiceListenerAddr=127.0.0.1 -debug