add option to fetch settings from external API

public/index.html

@@ -13,20 +13,8 @@
     <script src="./chatbox.js"></script>
     <script>
       var config = {
-        matrixServerUrl: 'https://matrix.rhok.space',
-        botId: '@help-bot:rhok.space',
-        roomName: 'Support Chat',
-        termsUrl: 'https://tosdr.org/',
-        introMessage: "This chat application does not collect any of your personal data or any data from your use of this service.",
-        agreementMessage: 'Do you want to continue?',
-        confirmationMessage: 'Waiting for a facilitator to join the chat...',
-        exitMessage: 'The chat is closed. You may close this window.',
-        chatUnavailableMessage: 'The chat service is not available right now. Please try again later.',
-        anonymousDisplayName: 'Anonymous',
-        position: 'bottom right',
-        size: 'large',
-        maxWaitTime: 1000*60*3, // 3 minutes
-    }
+        settingsEndpoint: 'https://safesupport-admin.herokuapp.com/api/get-settings'
+      }
 
       EmbeddableChatbox.mount(config);
     </script>