Clearing session terminates all open connections

Description

When using the "clear entire session" [trashcan] button all pending connections are forcefully terminated.

Steps to Reproduce

1. Open Proxyman
2. Visit any site that uses WebSockets [for example, facebook.com]
3. In your web browser open the "Networks" debug pane
4. Observe a number of open WebSockets
5. Additionally, observe them in Proxyman
6. Click the trashcan button
7. Observe in the "Networks" browser pane that all WebSockets have been terminated
8. Observe in Proxyman that the browser [JavaScript] will probably reinitialize those sockets
9. Each time the session is cleared all open connections are terminated, potentially leading to confusion in the browser

Current Behavior

[as described above]

Expected Behavior

In Charles Proxy [similar application], when clearing a session all open connections will remain open and carry forward to the new session. From there we can individually terminate the connections manually if we want to. I would expect similar behavior from Proxyman, or maybe even Shift + Click would terminate all connections.

This also applies to non-WebSocket requests which are just taking a long time. For example, clearing a session will terminate any downloads of large files, or requests which simply haven't resolved yet.

Environment

• App version: e.g Proxyman 3.15.0
• macOS version: macOS Monterey 12.6.2