TimeSlider / TimeLayerSliderPanel: Pass value correctly to layer / component and use DayJs

[ahennr]

Description

This PR refactors the TimeSlider and TimeLayerSliderPanel components to allow the time value to be updated externally (e.g., through a Form) and passed directly to configured time layers. Additionally, momentjs has been replaced with dayjs, aligning with the default time library used in antd.

With these changes, there are now two ways to retrieve the selected value from the slider:

1. onChange: Triggered immediately when the slider's value changes.
2. onChangeComplete: Triggered once the user finishes dragging the slider pointer.

Related issues or pull requests

Pull request type

• Bugfix
• Feature
• Dependency updates
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe)

Do you introduce a breaking change?

• Yes
• No

Checklist

• I understand and agree that the changes in this PR will be licensed under the
  BSD-2-Clause.
• I have followed the guidelines for contributing.
• The proposed change fits to the content of the Code of Conduct.
• I have added or updated tests and documentation, and the test suite passes (run npm run check locally).
• I have added a screenshot/screencast to illustrate the visual output of my update.

[LukasLohoff]

Very nice!

Shouldn't we also add dayjs to the package.json?