fix(angular): throw error when no parent module found

[Coly010]

Current Behavior

When there are no parent modules to add a component to, the generator fails with a cryptic error.

Expected Behavior

We should throw a better when a parent module cannot be found

Related Issue(s)

Fixes #16689

[vercel]

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1 Ignored Deployment

Name	Status	Preview	Comments	Updated (UTC)
nx-dev	⬜️ Ignored (Inspect)			May 3, 2023 3:07pm

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✅ Successfully ran 8 targets

• nx affected -t e2e-macos --parallel=1 --base= --head=
• nx affected --target=e2e --base=9c3698982b62921ed62cb40ed29b63b352e5df3b --head=a66c3d855f08f381654b944e93042d48ba1b9871 --parallel=1
• nx affected --target=test --base=9c3698982b62921ed62cb40ed29b63b352e5df3b --head=a66c3d855f08f381654b944e93042d48ba1b9871 --parallel=1
• nx run-many -t check-imports check-commit check-lock-files depcheck --parallel=1 --no-dte
• nx affected --target=build --base=9c3698982b62921ed62cb40ed29b63b352e5df3b --head=a66c3d855f08f381654b944e93042d48ba1b9871 --parallel=3
• nx affected --target=lint --base=9c3698982b62921ed62cb40ed29b63b352e5df3b --head=a66c3d855f08f381654b944e93042d48ba1b9871 --parallel=3
• nx-cloud record -- nx format:check --base=9c3698982b62921ed62cb40ed29b63b352e5df3b --head=a66c3d855f08f381654b944e93042d48ba1b9871
• nx documentation --no-dte

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