Create rememberPinLastItemBottomArrangement composable for reuse in tools and lessons

Author: tjohnson009

app/src/main/kotlin/org/cru/godtools/ui/dashboard/PinLastItemBottomArrangement.kt

@@ -0,0 +1,23 @@
+package org.cru.godtools.ui.dashboard
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.unit.Density
+
+@Composable
+internal fun rememberPinLastItemBottomArrangement(items: Int): Arrangement.Vertical = remember(items) {
+    object : Arrangement.Vertical {
+        override fun Density.arrange(totalSize: Int, sizes: IntArray, outPositions: IntArray) {
+            var currentOffset = 0
+            sizes.forEachIndexed { index, size ->
+                if (index == sizes.lastIndex) {
+                    outPositions[index] = maxOf(currentOffset, totalSize - size)
+                } else {
+                    outPositions[index] = currentOffset
+                    currentOffset += size
+                }
+            }
+        }
+    }
+}