Fix split screen app chip position in portrait mode

Adjusted the secondary app chip's split translation in portrait mode to account for the divider size, ensuring correct positioning in split screen.

Fix: 314326993
Flag: com.android.launcher3.enable_overview_icon_menu
Test: OverviewImageTest
Test: OverviewSplitTaskImageTest
Change-Id: I39eae8b5f1ac8cff6b466cff5b6fb16f0a6e9647
diff --git a/quickstep/src/com/android/quickstep/orientation/PortraitPagedViewHandler.kt b/quickstep/src/com/android/quickstep/orientation/PortraitPagedViewHandler.kt
index 1883649..74ae688 100644
--- a/quickstep/src/com/android/quickstep/orientation/PortraitPagedViewHandler.kt
+++ b/quickstep/src/com/android/quickstep/orientation/PortraitPagedViewHandler.kt
@@ -726,7 +726,11 @@
                         val secondarySnapshotWidth = groupedTaskViewWidth - primarySnapshotWidth
                         primaryAppChipView.setSplitTranslationX(-secondarySnapshotWidth.toFloat())
                     } else {
-                        secondaryAppChipView.setSplitTranslationX(primarySnapshotWidth.toFloat())
+                        val dividerSize =
+                            Math.round(groupedTaskViewWidth * splitConfig.dividerPercent)
+                        secondaryAppChipView.setSplitTranslationX(
+                            primarySnapshotWidth.toFloat() + dividerSize
+                        )
                     }
                 } else {
                     primaryAppChipView.setSplitTranslationX(0f)