fixes for sidebar ordering and client health

[bucko13]

Needed to fix some things for sidebar ordering to work:

• pathName was getting overwritten for subItems (originally had a functionality where these were automatically composed in relation to their parent, but this unfortunately interferes with React Router API)
• Confusing naming around multisig wallet client that caused some config problems. Changed all instances of multisigWalletClient -> multisigClient
• Beginning of combining clientHealth check with the services properties for client info. So if a server connection fails now, then a service will be marked as false. This doesn't work great though since we still have to use getInfo for all clients. I started to migrate to use getWallets for wallet clients, but there were two problems 1) a bug in bmultisig was breaking the call for multisig if there were no wallets 2) That endpoint only works for admin privileges.
• add a check for client info before setting new current client (this actually just a fork from #144)

[tynes]

This PR needs to update bpanel-ui to the latest version in the package.json to work properly

[bucko13]

Good catch. Also found a bug that was caused from trying to open a client that doesn't exist (because of the configs). This would break the socketManager.add for all the clients.