android: wrap the board's column choice the way ktlint wants

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

android/app/src/main/java/com/fabledsword/inkwell/ui/BoardScreen.kt

@@ -474,11 +474,12 @@ private fun NoteBoard(
     // `xl`, 1280px), on the window's width, so a tablet lays out like a browser of the
     // same size. Below that it stays at two, where the web drops to one on a phone.
     val windowWidth = LocalConfiguration.current.screenWidthDp
-    val columns = when {
-        windowWidth >= 1280 -> 4
-        windowWidth >= 1024 -> 3
-        else -> 2
-    }
+    val columns =
+        when {
+            windowWidth >= 1280 -> 4
+            windowWidth >= 1024 -> 3
+            else -> 2
+        }
     LazyVerticalStaggeredGrid(
         columns = StaggeredGridCells.Fixed(columns),
         modifier = Modifier.fillMaxSize(),