Latest Handshake for peer not being populated

[brandan-schmitz]

Describe the bug:

In the UI, the column to show when the last handshake for a peer was is always showing none even when wg show lists it.

To Reproduce:

Steps to reproduce the behavior:

1. Create a peer for an interface if you do not already have one.
2. Go to the Network tab on the left navigation bar.
3. Click the More button at the bottom of your Wireguard interface.
4. Scroll down to the peers section.
5. Observe that the last handshake displays None
6. Open a CLI to the server running your Linguard instance and run the wg show command. As long as a peer has connected previously it should show the latest handshake time.

Expected behavior:

The UI should show the same time as the CLI wg show command when looking at the peers Last Handshake column.

Screenshots:

CLI Result:

UI Display:

Desktop:

• OS: macOS Monterey
• Browser: Firefox 96.0.2

Server:

• OS: Ubuntu 20.04
• wireguard-tools: v1.0.20200513
• Linguard: v1.1.0 (bare-metal install)