docs(react): fix EIP-5792 hook examples

[Osraka]

Summary

Fixes a few React EIP-5792 hook docs examples that were using core/action-style snippets:

• updates useCapabilities, useCallsStatus, and useWaitForCallsStatus parameter examples to import hooks from wagmi
• wraps those examples in React component usage instead of await use...
• fixes copied frontmatter descriptions for useCapabilities and useCallsStatus
• corrects the useCapabilities connector description

Validation

• git diff --check
• rg "import \\{ use[A-Za-z]+ \\} from '@wagmi/core'|const status = await use[A-Za-z]+\\(" site/react/api/hooks -n
• rg "most recent block seen" site/react/api/hooks/useCapabilities.md site/react/api/hooks/useCallsStatus.md -n

Docs-only change; I did not run the full site build locally because dependencies were not installed in this checkout.

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Latest commit: c426c00

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