Add setting to keep wireshark window active in background

Author: kaelemc

package.json

@@ -1176,6 +1176,11 @@
             "Light"
           ],
           "description": "The theme, or colour scheme of the wireshark application."
+        },
+        "containerlab.capture.wireshark.stayOpenInBackground": {
+          "type": "boolean",
+          "default": "true",
+          "description": "Keep Wireshark VNC sessions alive, even when the capture tab is not active. Enabling this will consume more memory on both the client and remote containerlab host system."
         }
       }
     }

src/commands/capture.ts

@@ -237,6 +237,7 @@ export async function captureEdgesharkVNC(
   const dockerPullPolicy = wsConfig.get<string>("capture.wireshark.pullPolicy", "always")
   const extraDockerArgs = wsConfig.get<string>("capture.wireshark.extraDockerArgs")
   const wiresharkThemeSetting = wsConfig.get<string>("capture.wireshark.theme")
+  const keepOpenInBackground = wsConfig.get<boolean>("capture.wireshark.stayOpenInBackground")
 
   let darkModeEnabled = false;
 
@@ -324,6 +325,7 @@ export async function captureEdgesharkVNC(
     vscode.ViewColumn.One,
     {
       enableScripts: true,
+      retainContextWhenHidden: keepOpenInBackground
     }
   );