feat(react): Add support for React Router createMemoryRouter

[onurtemizkan]

Ref: #14814

I was not able to properly distinguish between the instances of BrowserRouter and MemoryRouter. However, using initialEntries with BrowserRouter should break TypeScript where it's available. We can alternatively export a wrapper specific to MemoryRouter if that makes better sense.

[codecov]

❌ 1 Tests Failed:

Tests completed	Failed	Passed	Skipped
254	1	253	8

View the top 1 failed tests by shortest run time

transactions.test.ts Captures a pageload transaction

Stack Traces | 1.19s run time

transactions.test.ts:4:5 Captures a pageload transaction

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[lforst]

We can alternatively export a wrapper specific to MemoryRouter if that makes better sense.

I actually think this idea isn't too bad. 🤔 Would it be a lot of effort?

[onurtemizkan]

@lforst - Updated the PR to export wrapCreateMemoryRouterV6 and wrapCreateMemoryRouterV7. I'll update the docs, and backport to v8 if this looks good.

[lforst]

I took the liberty to do 2 functions instead of the boolean arg. I have seen that pattern go bad very quickly.

Otherwise looks great to me! We shouldn't forget to add docs.