8353e8cecc peers-tab: bug fix right panel toggle (randymcmillan)
Pull request description:
Initial Presentation:

When node row selected - panel is presented:

When network disabled - right panel is hidden:

ACKs for top commit:
jarolrod:
ACK 8353e8cecc
jonatack:
ACK 8353e8cecc tested rebased on current master. Behavior is initially a bit surprising but this would allow more columns to be added to the peers tab window. Verified that selecting more than one peer, clicking on a column header, or running `disconnectnode "" <currently-selected-peer-id>` in the console (or on the CLI with the `-server` startup option) returns the window to its full size. If this is merged, it might be nice to have an obvious way to close the details area like a clickable "close this" icon in the upper left corner of the area.
Talkless:
tACK 8353e8cecc, tested on Debian Sid. Made `bitcoind` connect to `bitcoin-qt` with the PR changes, and after I quit the `bitcoind` instance, right panel do disappear, compared to the previous commit where it didn't.
Tree-SHA512: 8fc156f40bdd61e3ba8db333c729a2a07fd5f0fd1eed56f2fd2aa5ae5864756f8ab6fad74ae2fb0552ee7518b6d489f5800709e6c80c6f31f61fd8ce21cece5f