RPA.Desktop: Request for Highlight Elements to return region coordinates

[CodexEmpirium]

This is a request to improve the functionality of the existing RPA.Desktop.Highlight Elements keyword to also store the corner coordinates of the region, and return those as a list (or 4 individual variables) to be used for further region-specific work.

[mikahanninen]

Good catch — `highlight_elements` already computes a `Region` (with left/top/right/bottom) for every match internally, it just wasn't returning it.

Fixed in #1343: `Highlight Elements` now returns the list of matched `Region` objects, so you can use the coordinates directly:

```robotframework
@{regions} = Highlight Elements type:HeaderItem
FOR ${region} IN @{regions}
Log ${region.left}, ${region.top}, ${region.right}, ${region.bottom}
END
```