Layer control enhancements

[boeckMt]

PR Checklist

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• The commit message follows our guidelines: https://github.com/dlr-eoc/ukis-frontend-libraries/blob/main/CONTRIBUTING.md#-commit-message-guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• The Project is building and passes all tests without errors

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

What is the current behavior?

The following issues should be resolved and while trying to solve them, other problems emerged.

Issue Number:

• Action in baselayer is not displayed when using description or legend - LayerentryComponent #135
• Allow legend on LayerGroup #138

What is the new behavior?

Fixed the issues #135 and #138 and made further changes:

• Show layer expand icon only when the layer has some things to ex…
• Allow dynamic components for layer.description
• Do not change the layer object binding in layerentry
• use inputs.description if possible to generate abstract from dy…
• Allow Dynamic components for Group description
• style for group tabsbody and actions button position

Does this PR introduce a breaking change?

• Yes
• No

Other information

Is it part of one/more packages and which?

• @dlr-eoc/core-ui
• @dlr-eoc/layer-control
• @dlr-eoc/services-layers
• @dlr-eoc/services-ogc
• demo-auth
• demo-maps

[lucas-angermann]

Looks good!

[voinSR]

Looks good! Thanks a lot :)