Kwargs: startProfileAt (#6424)

Previous:

```
startProfileAt([x, y], %)
startProfileAt([x, y], sketch001)
```

New:
```
startProfile(%, at = [x, y])
startProfile(sketch001, at = [x, y])
```

rust/kcl-lib/e2e/executor/inputs/kittycad_svg.kcl

@@ -1,5 +1,5 @@
 const svg = startSketchOn(XY)
-    |> startProfileAt([0, 0], %)
+    |> startProfile(at = [0, 0])
 
 |> line(endAbsolute = [2.52, -26.04]) // MoveAbsolute
 |> line(endAbsolute = [2.52, -25.2]) // VerticalLineAbsolute