feat(react-router): Add build-time config #33262

Job	Run time
Get Metadata	5s
Build	38s
Check PR branches	1s
Check file formatting	35s
Lint	1s
Circular Dependency Check	1s
Browser Unit Tests	1s
Size Check	1s
Upload Artifacts	1s
Bun Unit Tests	1s
Deno Unit Tests	1s
Node (${{ matrix.node }}) Unit Tests	1s
PW ${{ matrix.bundle }} Tests	1s
Playwright ${{ matrix.bundle }}${{ ((matrix.project && (matrix.project != 'chromium') && format(' {0}', matrix.project)) \|\| '') }}${{ ((matrix.shard && format(' ({0}/{1})', matrix.shard, matrix.shards)) \|\| '') }} Tests	1s
Check for faulty .d.ts files	1s
Prepare E2E tests	1s
Node (${{ matrix.node }})${{ ((matrix.typescript && format(' (TS {0})', matrix.typescript)) \|\| '') }} Integration Tests	1s
Remix (Node ${{ matrix.node }}) Tests	1s
E2E ${{ matrix.label \|\| matrix.test-application }} Test	1s
E2E ${{ matrix.label \|\| matrix.test-application }} Test (optional)	1s
All required jobs passed or were skipped	1s
	1m 36s

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