Performance: hide more unsupported features

[hoxyq]

Summary

Enhances the work done in #138. We are gating under RN entrypoint experiment things that we don't support / can't support yet for Performance panel.

See the full list of changes and explanation in this document, we will keep track of them. I will also add Alex's changes to it.

Because we started to use this RN experiment in multiple new places, I had to update some tests to initialize it correctly. Before the changes in this PR, these tests did not use any experiments, now we have to explicitly register them before running test, otherwise Chrome's experiment system will throw an error when we will try to access unregistered experiment.

Test plan

• This change maintains backwards compatibility with previous Local Storage data (if modifying settings, experiments, or other persisted client state).

Upstreaming plan

• This commit should be sent as a patch to the upstream devtools-frontend repo. I've reviewed the contribution guide.
• This commit is React Native-specific and cannot be upstreamed.