Add 429.html

[Schlaumeier5]

In the resources tab, add a new error html page: 429.html.
It will be used for ratelimiting, indicating HTTP status code 429: TOO MANY REQUESTS.

[Sana9058]

Hi! I’d like to work on this issue. Could you please assign it to me?

[Schlaumeier5]

Okiiii ty @Sana9058

[Sana9058]

@Schlaumeier5 Hi, I’ve opened a pull request for this issue. Please let me know if any changes are needed. Thank you!

[Schlaumeier5]

@Sana9058 tysm, I will look at it later :)

[Schlaumeier5]

Fixed in #181