Layer control enhancements

[boeckMt]

PR Checklist

Please check if your PR fulfills the following requirements:

• [x] 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)
• [x] Docs have been added / updated (for bug fixes / features)
• [x] The Project is building and passes all tests without errors

PR Type

What kind of change does this PR introduce?

• [x] Bugfix
• [x] Feature
• [ ] Code style update (formatting, local variables)
• [x] 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:

• 135

• 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
• [x] 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