fix: connection to local server terminal

[szwabodev]

• added iproute2 to dependecies in Dockerfile (required for ip route command)
• added util for checking if Dokploy is running in WSL
• added util for getting Docker host IP
• added command to allow access for local server terminal, which is displayed in the terminal when connection fails, after auto-generating private SSH key. This command must be run on the server manually by the user and is required only once to append the auto-generated SSH key to authorized_keys file on the server. Also added similar command for granting permission access to the /etc/dokploy/ssh directory when needed.
• fixed the local server terminal connection host to use Docker host IP instead of localhost in production env
• refactored error message for client authentication to be separated for local server/remote server

The last approach sadly only worked in local dev server, the new approach was tested locally on a built Docker image and Dokploy running inside Docker container instead of local dev server, and it connected fine.

Permission denied error with a command to fix it:

Access error for generated private SSH key with a command to authorize the key:

Successfull connection after running the above commands: