[Bug] Slider component - track size changes often

### Description

When I drag the slider knob, the track size changes due to text label changing its width (on value update), triggering unnecessary recalculations of the track width. Also there probably should be formatting applied to the numbers in the labels, to avoid things like in the screenshot:

Recording of the track size changes in the docs site Slider component:

https://github.com/user-attachments/assets/44a75aaa-2b1b-4e2e-8858-58e9df2a2d11

### Reproduction

1. Render Slider component with label representing value
2. Drag the knob without releasing it
3. notice how the track width is changing, triggering recalculating of the value due to knob constantly shifting under the mouse

### Astryx Version

"@astryxdesign/core": "^0.1.6",

### Environment

Chrome 150 Mac OS