fix(viewer): Prevent overwriting tab ID and refine event logging

-   **background.js**: Modify the `processIncomingMessage` function to conditionally assign `message.tid`. The originating tab ID will now only be set if `message.tid` is currently `undefined` or `null`. This prevents an existing tab ID from being inadvertently overwritten, ensuring more accurate tracking and attribution of messages to their source tabs. This is crucial for reliable viewer count metrics and event processing.
-   **events.html**: Adjust logging within the event overlay to specifically output `e.data.dataReceived.overlayNinja`. This change streamlines debugging efforts by focusing the log output on relevant event data impacting the overlay display, aiding in the validation of viewer-related information.

[auto-enhanced]

Author: steveseguin

background.js

@@ -3579,11 +3579,11 @@ const checkDuplicateSources = new CheckDuplicateSources();
 
 async function processIncomingMessage(message, sender=null){
 
-	try {
-		if (sender?.tab){
-			message.tid = sender.tab.id; // including the source (tab id) of the social media site the data was pulled from
-		}
-	} catch (e) {}
+	try {
+		if (sender?.tab && (message.tid === undefined || message.tid === null)){
+			message.tid = sender.tab.id; // including the source (tab id) of the social media site the data was pulled from
+		}
+	} catch (e) {}
 
 	if (isExtensionOn && message?.type) {
 		if (!checkIfAllowed(message.type)) {

events.html

@@ -1503,7 +1503,6 @@ <h1>Stream Events & Donations Dashboard</h1>
 
 		window.addEventListener("message", function (e) {
 			if (e.source != iframe.contentWindow) return;
-			log(e.data);
             // Logic to populate iframe.connectedPeers, similar to dock.html
             if ("action" in e.data && e.data.UUID && "value" in e.data) {
                 const peerUUID = e.data.UUID;
@@ -1530,6 +1529,7 @@ <h1>Stream Events & Donations Dashboard</h1>
             }
 
 			if (e.data.dataReceived && e.data.dataReceived.overlayNinja) {
+				log(e.data.dataReceived.overlayNinja);
 				addMessageToOverlay(e.data.dataReceived.overlayNinja);
 			}
 		});