Improve 429 error for "error while loading the data, try reloading the page".

[314159265359879]

A user is experiencing this issue when they are signed in to lockstacks.com and looking at their pooling info. The error just pops into the screen from time to time.

[markmhendrickson]

@friedger any chance you'd could investigate this sometime soon? It's popping up for more users

[pete-watters]

@markmhendrickson looking at this console error and it's 429 rate limiting issues from the Hiro API.

So it seems like something we can't do much about for now and that the error message and advice is the best we can do without changing the UI to auto poll

[markmhendrickson]

I believe @friedger was going to improve the error message here at the very least, so users have a better sense of what's happening

[alter-eggo]

@friedger to avoid 429 hiro requests you need to add 'x-hiro-product': 'Leather' request header for hiro api requests, link to how we do it

also you prob need to add request queue for hiro requests (we use p-queue library), to limit requests made by the app to 300rpm