RangeSelector: Tooltip can't be formatted

### Describe the bug

Currently the tooltip on the RangeSelector always shows and shows the raw value. It's missing the equivalent properties of Slider:
- [ThumbToolTipValueConverter](https://learn.microsoft.com/en-us/uwp/api/windows.ui.xaml.controls.slider.thumbtooltipvalueconverter?view=winrt-26100)
- [IsThumbToolTipEnabled](https://learn.microsoft.com/en-us/uwp/api/windows.ui.xaml.controls.slider.isthumbtooltipenabled?view=winrt-26100)

You don't always want the tooltip, or you want to show for instance percentage, or format/round or add currency to it.

### Steps to reproduce

```text
Create a range selector from 0 to 1, to select percentage.
The tooltip will show 0.xxxx values, instead of formatted percentages.
```

### Expected behavior

Ability to override tooltip or disable tooltip.

### Screenshots

_No response_

### Code Platform

- [ ] UWP
- [X] WinAppSDK / WinUI 3
- [ ] Web Assembly (WASM)
- [ ] Android
- [ ] iOS
- [ ] MacOS
- [ ] Linux / GTK

### Windows Build Number

- [ ] Windows 10 1809 (Build 17763)
- [ ] Windows 10 1903 (Build 18362)
- [ ] Windows 10 1909 (Build 18363)
- [X] Windows 10 2004 (Build 19041)
- [X] Windows 10 20H2 (Build 19042)
- [X] Windows 10 21H1 (Build 19043)
- [X] Windows 10 21H2 (Build 19044)
- [X] Windows 10 22H2 (Build 19045)
- [X] Windows 11 21H2 (Build 22000)
- [ ] Other (specify)

### Other Windows Build number

_No response_

### App minimum and target SDK version

- [ ] Windows 10, version 1809 (Build 17763)
- [ ] Windows 10, version 1903 (Build 18362)
- [ ] Windows 10, version 1909 (Build 18363)
- [X] Windows 10, version 2004 (Build 19041)
- [ ] Windows 10, version 2104 (Build 20348)
- [ ] Windows 11, version 22H2 (Build 22000)
- [ ] Other (specify)

### Other SDK version

_No response_

### Visual Studio Version

_No response_

### Visual Studio Build Number

_No response_

### Device form factor

_No response_

### Additional context

_No response_

### Help us help you

Yes, I'd like to be assigned to work on this item.

Start with the RangeSelector entry point and compare its tooltip behavior with the Slider properties named in the issue: ThumbToolTipValueConverter and IsThumbToolTipEnabled. Determine how formatting, disabling, and overriding should work for percentage or currency values, then verify that the tooltip can be controlled without breaking range selection.

Vom Indexierungsmodell aus dem Issue-Text verfasst.