Allow option to show ProxyJump and IdentifyFile options

[campbell-brown]

This looks like a great tool!

One limitation I can see is that it hides some parameters from the SSH config. Often someone will ask me for an SSH configuration, and I will have to manually look into the .ssh/config to see what parameters a connection has. It would be nice to view the IdentifyFile and ProxyJump parameters displayed in the sshd TUI.

I have a lot of SSH configurations such as:

Host remote-jump
    HostName remote-server
    User jumpuser
    Port 1234
    IdentityFile ~/.ssh/a_non_default_private_ssh_key

Host remote-dev
    HostName target
    User me
    IdentityFile ~/.ssh/a_non_default_private_ssh_key
    ProxyJump remote-jump

This information could be displayed:

• As additional columns, perhaps optional with CLI options
• A "details" section that displays information for the currently selected SSH configuration. This details section could always be visible or toggleable with a keybind.