update advertisement module. update millix bar

chrome/browser/resources/millix/millix_bar.js

@@ -16,8 +16,11 @@ const loadTimeData = {
 
 chrome.send = () => { }
 
-const NODE_ID = '15R1pfUjf7rxctfgfTqdygvTWMm2aZ5SVF';
-const NODE_SIGNATURE = '4d9yMgPRHhFYJ85GuAQcZ1TW7VZkgofY5PhyK7A8rNjtggVUCrFh2nxHUkC5rzmxtHvZNfn6AA7hR61cRFK8ar95';
+const NODE_ID = undefined;
+const NODE_SIGNATURE = undefined;
+if(!NODE_ID || !NODE_SIGNATURE){
+    throw Error("NODE_ID and NODE_SIGNATURE must be defined");
+}
 setTimeout(() => {
     millix_bar.connectToWallet({ node_id: NODE_ID, node_signature: NODE_SIGNATURE })
     millix_bar.activateWallet()
@@ -371,9 +374,7 @@ cr.define('millix_bar', function () {
     function initialize() {
         console.log("[initialize]");
 
-        if (loadTimeData.getBoolean('is_dark_theme')) {
-            document.body.classList.add('dark');
-        }
+        refreshThemeStyles({ is_dark_theme: loadTimeData.getBoolean('is_dark_theme') });
 
         $('#wallet').click(() => showMillixWallet());
         $('#wallet_unlock').click(() => showMillixWallet());