Fix streaming start appending undefined to reasoning block

f7eab6602608fc39db6764c2be3dd4c8d4bb1c4b

Cohee <18619528+Cohee1207@users.noreply.github.com>

public/script.js+1 -1 Viewed

             this.sendTextarea.dispatchEvent(new Event('input', { bubbles: true }));
+        }
         else {
             await saveReply(this.type, text, true, '', [], '');
             messageId = chat.length - 1;
             this.#checkDomElements(messageId);
             this.showMessageButtons(messageId);