Angular material form style inconsistencies

### Describe the bug

- With `showUnfocusedDescription`, checkbox and slider description don't have the right style (should be the same as "GeoJSON geometry object")
- Array of values are missing a margin, they are not well separated
- Description of array of values is not shown
- When adding array of value items, each item input content is not vertically centered
- Slider doesn't use the default value set in json schema

Can we add a general description label for array of values?
Do you plan to add the missing controls in the angular version?
Code: [test-jsonforms.zip](https://github.com/user-attachments/files/21099934/test-jsonforms.zip)

### Expected behavior

_

### Steps to reproduce the issue

Slider: choose "gzip" compression

### Screenshots

### Which Version of JSON Forms are you using?

v3.6.0

### Package

Angular Material Renderers

### Additional context

_No response_