refactor: update Base infrastructure for hooks compatibility

[serikjensen]

Summary

Refactors BaseBoundaries and BaseLayout to support hook-based usage without requiring Suspense, as described in the hooks RFC (PR #1254).

• BaseBoundaries no longer wraps children in Suspense — Suspense is added back at each existing component call site so current SDK components are unaffected
• BaseLayout accepts an isLoading prop for hook-based components to render a loading state without Suspense
• BaseLayout accepts SDKError | SDKError[] | null for the error prop (backwards compatible) — multiple errors render a top-level "multiple problems" message with a bulleted list of each error, field errors nested as sub-lists
• BaseLayout and BaseLayoutProps are now exported from @/components/Base

Changes

• Base.tsx: Remove Suspense from BaseBoundaries; add it directly in BaseComponent. Refactor BaseLayout into SingleErrorContent and MultipleErrorsContent sub-components. Add isLoading prop.
• index.ts: Export BaseLayout, BaseLayoutProps, BaseBoundariesProps
• ConfirmWireDetails.tsx: Add Suspense wrapper inside BaseBoundaries
• InformationRequests.tsx: Add Suspense wrapper inside BaseBoundaries
• PayrollConfigurationProvider.tsx: Accept LoaderComponent directly, add Suspense wrapper inside BaseBoundaries
• common.json: Add status.multipleErrorsEncountered translation key

Test plan

• tsc --noEmit passes (verified locally)
• Existing component behavior is unchanged (Suspense added back at all call sites)
• BaseLayout with a single SDKError renders identically to before
• BaseLayout with an array of SDKError[] renders top-level message + bulleted error list with nested field errors
• BaseLayout isLoading renders the loading indicator

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