```Rect.Contains(double x, double y)``` returns ```true``` for points on both right and bottom edges

### Description

```Rect.Contains(double x, double y)``` returns ```true``` for points on both right and bottom edges

### Reproduction Steps

```
Console.WriteLine(new Rect(0, 0, 1, 1).Contains(0, 0));
Console.WriteLine(new Rect(0, 0, 1, 1).Contains(0, 1));
Console.WriteLine(new Rect(0, 0, 1, 1).Contains(1, 0));
Console.WriteLine(new Rect(0, 0, 1, 1).Contains(1, 1));
```

### Expected behavior

output:
True
False
False
False

### Actual behavior

output:
True
True
True
True

### Regression?

_No response_

### Known Workarounds

_No response_

### Impact

_No response_

### Configuration

_No response_

### Other information

[https://github.com/dotnet/wpf/blob/main/src/Microsoft.DotNet.Wpf/src/WindowsBase/System/Windows/Rect.cs#L763](url)
```
return ((x >= _x) && (x - _width <= _x) &&
(y >= _y) && (y - _height <= _y));
```
expected:
```
return ((x >= _x) && (x - _width < _x) &&
(y >= _y) && (y - _height < _y));
```