Add links to performance related visualizations

Why is this change being made?

We have a performance related OKR about meeting the speed index target: #7330 (closed). I also have a personal OKR specifically about this: #7541 (closed).

In order to ensure that the endpoints/actions we handle meet the target, we need to be able to see if they are indeed meeting the target. We currently rely on the QA benchmark results for this but that only tests specific endpoints.

That said, 2 Kibana visualizations were created to easily see this. I feel that a table format (which is sortable) will give us a quick overview on what endpoints/actions are not meeting the target and can be possibly improved. This can also be helpful to quickly see (it can also be done by using the grafana dashboard we have for rails controllers) if the performance improvements we made actually helped.

Ideally, this is also a grafana dashboard but went with Kibana visualization for now since it's faster to create. We can iterate on moving it to grafana later on.

Adding it to our team page so they can be easily seen (hopefully). 🙂

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