Introduce gaps between windows.

Nobody has claimed this yet.

I really love your script, but in my case I had to introduce small gaps between windows. Here is a patched function. It would be nice if this feature is configurable.
```
function newSlotPosition(workspace, client, numberXslots, numberYslots, x, y, xSlotToFill, ySlotToFill) {
var maxArea = workspace.clientArea(KWin.MaximizeArea, client);

var newX = maxArea.x + Math.round(maxArea.width / numberXslots * x) + 8;
var newY = maxArea.y + Math.round(maxArea.height / numberYslots * y) + 8;

var gapX = x + xSlotToFill < numberXslots ? 8 : 0;
var gapY = y + ySlotToFill < numberYslots ? 8 : 0;

// Width and height is calculated by finding where the window should end and subtracting where it should start
var clientWidth = Math.round(maxArea.width / numberXslots * (x + xSlotToFill)) - (newX - maxArea.x) - 8 + gapX;
var clientHeight = Math.round(maxArea.height / numberYslots * (y + ySlotToFill)) - (newY - maxArea.y) - 8 + gapY;

return [newX, newY, clientWidth, clientHeight]
}
```

Start by locating the newSlotPosition function in the KWin script and reading how workspace and window-slot geometry are calculated. Check how script settings are defined, then verify that a configurable gap is applied between windows while edge gaps remain correct.

Written by the indexing model from the issue text.