[mirotalksfu] - add 404 not found page

app/src/Server.js

@@ -96,6 +96,11 @@ app.get('/join/*', (req, res) => {
     }
 });
 
+// not match any of page before, so 404 not found
+app.get('*', function (req, res) {
+    res.sendFile(path.join(__dirname, '../../', 'public/view/404.html'));
+});
+
 // ####################################################
 // API
 // ####################################################