Add matrix link and fix help button

public/popup.html

@@ -127,8 +127,10 @@
     <footer id="sbFooter">
       <a href="https://sponsor.ajay.app" target="_blank" rel="noopener">Website</a> |
       <a href="https://sponsor.ajay.app/stats" target="_blank" rel="noopener">__MSG_viewLeaderboard__</a> |
-      <a href="https://github.com/ajayyy/SponsorBlock" target="_blank" rel="noopener">GitHub</a> |
+      <a href="https://github.com/ajayyy/SponsorBlock" target="_blank" rel="noopener">GitHub</a>
+      <br/>
       <a href="https://discord.gg/QnmVMpU" target="_blank" rel="noopener">Discord</a> |
+      <a href="https://matrix.to/#/+sponsorblock:ajay.app" target="_blank" rel="noopener">Matrix</a> |
       <a id="helpButton" href="#">__MSG_help__</a>
     </footer>
   </div>

src/background.ts

@@ -31,6 +31,9 @@ chrome.runtime.onMessage.addListener(function (request, sender, callback) {
         case "openConfig":
             chrome.runtime.openOptionsPage();
             return;
+        case "openHelp":
+            window.open(chrome.runtime.getURL('help/index_en.html'));
+            return;
         case "sendRequest":
             sendRequestToCustomServer(request.type, request.url, request.data).then(async (response) => {
                 callback({

src/popup.ts

@@ -830,7 +830,7 @@ async function runThePopup(messageListener?: MessageListener) {
     }
 
     function openHelp() {
-        window.open(chrome.runtime.getURL('help/index_en.html'));
+        chrome.runtime.sendMessage({"message": "openHelp"});
     }
 
     //make the options username setting option visible