fix(components/datetime): datepicker calendar overlay prevents unintended keyboard navigation from reaching parent components

[Blackbaud-CoreyArcher]

No description provided.

[nx-cloud]

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✅ Successfully ran 14 targets

• nx affected --target=build --parallel=10
• nx affected --target=test,posttest --parallel=5 --configuration=ci
• nx run i18n:postbuild
• nx build i18n
• nx affected:lint --quiet --silent --parallel=5
• nx build e2e-schematics
• nx run storybook:build-storybook:ci --outputDir=dist/storybook
• nx build code-examples --baseHref=https://blackbaud.github.io/skyux-pr-preview/1952/code-examples/
• nx build playground --baseHref=https://blackbaud.github.io/skyux-pr-preview/1952/playground/
• nx run ag-grid-storybook:build-storybook:ci
• nx build integration --baseHref=https://blackbaud.github.io/skyux-pr-preview/1952/integration/
• nx run tabs-storybook:build-storybook:ci
• nx run lists-storybook:build-storybook:ci
• nx run datetime-storybook:build-storybook:ci

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[blackbaud-sky-build-user]

Storybook preview

Component Storybooks:

• ag-grid-storybook
• datetime-storybook
• lists-storybook
• tabs-storybook

Apps:

• code-examples
• dep-graph
• integration
• playground