use current year in initial block, update msg

[mdickson-adbe]

• main js for details block now programmatically retrieves current year
• updated missing data msg for calendar view

Please always provide the JIRA issue(s) your PR is for, as well as a description of your changes:

• Before: https://main--assets-distribution-portal--adobe.hlx.page/sample-public-site
• After: https://assets-72090--adobe-gmo--hlxsites.hlx.page/program-details?programName=Summit%202025%20CSC%20Project&programID=66aa945b075a9e4cc04e149f1d72fb8c#

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Commits

• c777339 ✅ (latest)

[aem-code-sync]

	Page	Scores	Audits	Google
M	/program-details?programName=Summit%202025%20CSC%20Project&programID=66aa945b075 a9e4cc04e149f1d72fb8c
D	/program-details?programName=Summit%202025%20CSC%20Project&programID=66aa945b075 a9e4cc04e149f1d72fb8c
M	/sample-public-site
D	/sample-public-site