Update codebase to latest vanna/flask version

[azawalich]

I have noticed that the codebase available in this repository significantly differs from the latest version available in the Vanna AI repository. Therefore, I have plenty of questions:

1. Are there any plans to keep this repository code updated?
2. Could @zainhoda give any hints how to migrate/update the code individually?

[zainhoda]

We leave this codebase up for legacy reasons and to provide a sample but don't intend to maintain it. The canonical interface is the one that you linked to.

[azawalich]

@zainhoda thenks for letting me know - its's a pity, but it clarifies the issue for me. One more thing - I can see that the majority of elements visible on the web interface is generated dynamically by obfuscated JavaScript (innerHTML instructions), and not included in the HTML content itself. I believe it is rather an unusual way to render a website in Flask, can you please provide any hints how to add elements to the web interface and enrich it, so this method is legit from the programming perspective?