add cookie extraction function

ext/bg.js

@@ -512,6 +512,13 @@ function attach_ws_events(ws){
 				send(ws, seqid, {status: false});
 				break;
 			
+			case "get_cookies":
+				
+				var cookies = await browser.cookies.getAll(msg.filters);
+				
+				send(ws, seqid, {"cookies": cookies});
+				break;
+			
 			default:
 				console.log(`ws: unhandled message "${msg.action}"`, msg);
 				break;