docs(nxdev): optimize theme imports

[bcabanes]

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[nx-cloud-staging]

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✅ Successfully ran 12 targets

• nx affected --target=e2e --base=2d84f2565ff4114dee1f476b0087a2707178efe3 --head=12816c479d7a6261f6cffd530da9fdbd8e703a60 --exclude=e2e-storybook,e2e-storybook-angular,e2e-react-native,e2e-detox,e2e-make-angular-cli-faster --parallel=1
• nx affected --target=build --base=2d84f2565ff4114dee1f476b0087a2707178efe3 --head=12816c479d7a6261f6cffd530da9fdbd8e703a60 --parallel=3
• nx-cloud record -- yarn depcheck
• nx affected --target=test --base=2d84f2565ff4114dee1f476b0087a2707178efe3 --head=12816c479d7a6261f6cffd530da9fdbd8e703a60 --parallel=1
• nx affected --target=lint --base=2d84f2565ff4114dee1f476b0087a2707178efe3 --head=12816c479d7a6261f6cffd530da9fdbd8e703a60 --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=2d84f2565ff4114dee1f476b0087a2707178efe3 --head=12816c479d7a6261f6cffd530da9fdbd8e703a60
• nx-cloud record -- yarn check-imports
• nx-cloud record -- yarn documentation
• nx build typedoc-theme

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Name	Status	Preview	Updated
nx-dev	✅ Ready (Inspect)	Visit Preview	Nov 2, 2022 at 2:11PM (UTC)

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