feat: enabled & implemented date property for all entities

[zoidbergx]

Changes in this pull request

Added "date" property to pre-select a date in the properties

Additional info

WHAT

copilot:summary

copilot:poem

HOW

copilot:walkthrough

[github-actions]

Review Checklist

• Target branch (11.0 for bug fixes, others 11.x)
• Tests (if it's testable code, there should be a test for it - get help)
• Docs (every functionality needs to be documented, see here)
• Migration incl. install.sql (e.g. if the database schema changes, ...)
• Upgrade notes (deprecations, important information, migration hints, ...)
• Label
• Milestone