display msg when no deliverables in calendar

[mdickson-adbe]

Add a message to the calendar tab that indicates there are no deliverables to be shown.

• Before: https://main--assets-distribution-portal--adobe.hlx.page/sample-public-site
• After: https://assets-98992--adobe-gmo--hlxsites.hlx.page/drafts/mdickson/program-details?programName=MPgM%20Training%20Request%20-%20Demo&programID=66731b7e0ac4b41af639322d597ece3d

[aem-code-sync]

Hello, I'm the AEM Code Sync Bot and I will run some actions to deploy your branch and validate page speed.
In case there are problems, just click a checkbox below to rerun the respective action.

• Re-run PSI checks
• Re-sync branch

Commits

• c59c391 ✅ (latest)

[aem-code-sync]

	Page	Scores	Audits	Google
M	/drafts/mdickson/program-details?programName=MPgM%20Training%20Request%20-%20Dem o&programID=66731b7e0ac4b41af639322d597ece3d		Lighthouse returned error: NO_FCP. The page did not paint any content. Please ensure you keep the browser window in the foreground during the load and try again. (NO_FCP)
D	/drafts/mdickson/program-details?programName=MPgM%20Training%20Request%20-%20Dem o&programID=66731b7e0ac4b41af639322d597ece3d		Lighthouse returned error: NO_FCP. The page did not paint any content. Please ensure you keep the browser window in the foreground during the load and try again. (NO_FCP)