Add backoff retry when calling server

[longquanzheng]

After displaying both open and closed workflow in the default page, users are experiencing issue cadence-workflow/cadence#3900

We are doing a temporary workaround in server, but the best solution is to add backoff retry in webUI.

After adding this, we should remove the workaround in server repo: cadence-workflow/cadence#4238

[ibarrajo]

Closing this since we have an upcoming release of Cadence web which is a major rewrite to React.

You can see the upcoming changes here