refactor: update NewPingManager to accept a config file parameter

- Modified the NewPingManager function to include a configFile argument for better SSH configuration management.
- Updated all relevant tests to reflect the new function signature.
- Enhanced ping functionality to support ProxyJump and ProxyCommand using an external SSH command.
- Adjusted UI initialization to pass the config file to the PingManager.

This change improves flexibility in managing SSH connections and enhances the overall functionality of the ping manager.

internal/ui/tui.go

@@ -38,7 +38,7 @@ func NewModel(hosts []config.SSHHost, configFile string, searchMode bool, curren
 	styles := NewStyles(80) // Default width
 
 	// Initialize ping manager with 5 second timeout
-	pingManager := connectivity.NewPingManager(5 * time.Second)
+	pingManager := connectivity.NewPingManager(5*time.Second, configFile)
 
 	// Create the model with default sorting by name
 	m := Model{