refactor(router-vite-plugin): proxy for re-exporting from @tanstack/router-plugin/vite

[SeanCassiere]

Completing task 4 in #1756.

[nx-cloud]

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✅ Successfully ran 4 targets

• nx run-many --target=test:e2e:replay
• nx affected --targets=test:format,test:eslint,test:unit,test:build,build --parallel=3
• nx affected --target=build --exclude=examples/**
• nx affected --target=test:types --exclude=examples/**

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