Update handle_network_event to use BrowsingContextActor for HttpRequest (#37263)

- Add browsing_context_actor_name parameter to handle_network_event
- Replace NetworkEventMsg in HttpRequest case with
BrowsingContextActor::resource_available
- Update DevTools caller in lib.rs to pass browsing_context_actor_name

Testing: 
Fixes:
https://github.com/servo/servo/issues/33556#issuecomment-2756544430

---------

Signed-off-by: Uthman Yahaya Baba <uthmanyahayababa@gmail.com>

components/devtools/lib.rs

@@ -478,18 +478,21 @@ impl DevtoolsInstance {
         request_id: String,
         network_event: NetworkEvent,
     ) {
-        let console_actor_name = match self.find_console_actor(pipeline_id, None) {
-            Some(name) => name,
-            None => return,
-        };
         let netevent_actor_name = self.find_network_event_actor(request_id);
 
+        let Some(id) = self.pipelines.get(&pipeline_id) else {
+            return;
+        };
+        let Some(browsing_context_actor_name) = self.browsing_contexts.get(id) else {
+            return;
+        };
+
         handle_network_event(
             Arc::clone(&self.actors),
-            console_actor_name,
             netevent_actor_name,
             connections,
             network_event,
+            browsing_context_actor_name.to_string(),
         )
     }