fix(angular): fix root selector in index.html for standalone remotes

[Coly010]

Current Behavior

When generating a standalone remote we delete the unneeded app component but do not change the root selector in the index.html

Expected Behavior

make sure to change the root selector being used

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✅ Successfully ran 12 targets

• nx affected --target=e2e --base=5d74e4377549e7c4f52eb1c38486aadc746b0d56 --head=f317f09cf9bc22f47fad27501e84ac1d87fb2be1 --exclude=e2e-storybook,e2e-storybook-angular,e2e-react-native,e2e-detox,e2e-make-angular-cli-faster --parallel=1
• nx affected --target=test --base=5d74e4377549e7c4f52eb1c38486aadc746b0d56 --head=f317f09cf9bc22f47fad27501e84ac1d87fb2be1 --parallel=1
• nx affected --target=build --base=5d74e4377549e7c4f52eb1c38486aadc746b0d56 --head=f317f09cf9bc22f47fad27501e84ac1d87fb2be1 --parallel=3
• nx-cloud record -- yarn depcheck
• nx affected --target=lint --base=5d74e4377549e7c4f52eb1c38486aadc746b0d56 --head=f317f09cf9bc22f47fad27501e84ac1d87fb2be1 --parallel=3
• nx-cloud record -- yarn nx workspace-lint
• nx-cloud record -- yarn check-lock-files
• nx-cloud record -- yarn check-commit
• nx-cloud record -- yarn nx format:check --base=5d74e4377549e7c4f52eb1c38486aadc746b0d56 --head=f317f09cf9bc22f47fad27501e84ac1d87fb2be1
• nx-cloud record -- yarn check-imports
• nx-cloud record -- yarn documentation
• nx build typedoc-theme

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1 Ignored Deployment

Name	Status	Preview	Updated
nx-dev	⬜️ Ignored (Inspect)		Sep 27, 2022 at 9:01AM (UTC)

[github-actions]

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