fix(web): ensure file server works on windows

[meeroslav]

In #9330 we replaced exec with execFile which requires explicit shell property set on Windows otherwise commands fail with ENOENT.

Current Behavior

Expected Behavior

Related Issue(s)

Fixes #9444 and nightly build on Windows

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• nx affected --target=build --base=92293938ebec2d8ef86f9063d0c989dd9c4020cf --head=edfe8941dfed6460cc528d4d0191cdf574b0f792 --parallel=3
• nx affected --target=e2e --base=92293938ebec2d8ef86f9063d0c989dd9c4020cf --head=edfe8941dfed6460cc528d4d0191cdf574b0f792 --exclude=e2e-detox,e2e-js,e2e-next,e2e-workspace-create,e2e-workspace-integrations,e2e-workspace-core,e2e-react,e2e-web,e2e-angular-extensions,e2e-angular-core,e2e-cli,e2e-nx-plugin,e2e-cypress,e2e-node,e2e-linter,e2e-jest,e2e-a...
• nx affected --target=e2e --base=92293938ebec2d8ef86f9063d0c989dd9c4020cf --head=edfe8941dfed6460cc528d4d0191cdf574b0f792 --exclude=e2e-storybook,e2e-react-native,e2e-detox --parallel=1
• nx affected --target=lint --base=92293938ebec2d8ef86f9063d0c989dd9c4020cf --head=edfe8941dfed6460cc528d4d0191cdf574b0f792 --parallel=3
• nx affected --target=test --base=92293938ebec2d8ef86f9063d0c989dd9c4020cf --head=edfe8941dfed6460cc528d4d0191cdf574b0f792 --parallel=1
• nx build typedoc-theme
• nx run-many --target=build --all --parallel=8 --exclude=docs,nx-dev-data-access-documents,nx-dev-e2e,nx-dev,nx-dev-feature-analytics,nx-dev-feature-conf,nx-dev-feature-doc-viewer,nx-dev-feature-search,nx-dev-feature-storage,nx-dev-feature-versions-and-flavors,nx-dev-ui-commands,nx-dev-ui-common,nx-dev-ui-home,nx-dev-ui-member-card,nx-dev-ui-sponsor...

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