cb59943501
This commit builds the exit node menu including the recommended exit node, if available, as well as tailnet and mullvad exit nodes. This does not yet update the menu based on changes in exit node outside of the systray app, which will come later. This also does not include the ability to run as an exit node. Updates #1708 Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d Signed-off-by: Will Norris <will@tailscale.com>