JS: typo

Accidentally forgot to change these places where we use
`chat_messages.children`, which now refers to dates as well as messages.

anonstream/__init__.py

@@ -13,7 +13,7 @@ from anonstream.quart import Quart
 from anonstream.utils.captcha import create_captcha_factory, create_captcha_signer
 from anonstream.utils.user import generate_blank_allowedness
 
-__version__ = '1.6.7'
+__version__ = '1.6.6'
 
 def create_app(toml_config):
     app = Quart('anonstream', static_folder=None)

anonstream/static/anonstream.js

@@ -712,7 +712,7 @@ const on_websocket_message = async (event) => {
 
       // insert new messages
       const chat_messages_messages = chat_messages.querySelectorAll(".chat-message");
-      const last = chat_messages_messages.children.length == 0 ? null : chat_messages_messages.children[chat_messages_messages.children.length - 1];
+      const last = chat_messages_messages.length == 0 ? null : chat_messages_messages[chat_messages_messages.length - 1];
       const last_seq = last === null ? null : parseInt(last.dataset.seq);
       for (const message of receipt.messages) {
         if (message.seq > last_seq) {