[REF] devtools: Better messages forwarding

This commit improves how messages are relayed from the page to the
devtools by using a specific port for each instance of the owl devtools
panel and refreshing it through the heartbeat message. This allows
to prevent sending messages to every devtools instances and sorting
the messages inside.

tools/devtools/src/page_scripts/owl_devtools_global_hook.js

@@ -17,8 +17,6 @@
       this.addedElements = [];
       // To keep track of the succession order of the render events
       this.eventId = 0;
-      // Will be reset as soon as a new devtools owl tab is opened. Allows to avoid sending messages to the wrong devtools tab later on
-      this.devtoolsId = 0;
       // Set to keep track of the frame on which this script is loaded
       this.frame = "top";
       // Allows to launch a message each time an iframe html element is added to the page
@@ -38,7 +36,6 @@
                   source: "owl-devtools",
                   type: "NewIFrame",
                   data: addedNode.contentDocument.location.href,
-                  origin: { id: self.devtoolsId },
                 });
               }
             }
@@ -263,7 +260,7 @@
               source: "owl-devtools",
               type: "Flush",
               data: path,
-              origin: { id: self.devtoolsId, frame: self.frame },
+              origin: { frame: self.frame },
             });
           }
         });
@@ -372,7 +369,6 @@
             source: "owl-devtools",
             type: "Event",
             data: self.eventsBatch,
-            origin: { id: self.devtoolsId },
           });
           self.eventsBatch = [];
         }
@@ -628,7 +624,6 @@
           source: "owl-devtools",
           type: "SelectElement",
           data: path,
-          origin: { id: this.devtoolsId },
         });
       }
     };
@@ -656,7 +651,6 @@
       window.top.postMessage({
         source: "owl-devtools",
         type: "StopSelector",
-        origin: { id: this.devtoolsId },
       });
     };
 
@@ -1767,6 +1761,6 @@
     false
   );
   checkOwlStatus();
-  // Indicates whether the scripts loaded successfully or not (useful when loaded with eval in iframes only)
+  // Indicates whether the scripts loaded successfully or not (only useful when loaded with eval in iframes)
   return window.__OWL__DEVTOOLS_GLOBAL_HOOK__ !== undefined;
 })();