fix(mobile): Android split content keeps a gap at the screen edge (#26276)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

Author: juliusmarminge

apps/mobile/src/features/layout/AdaptiveWorkspaceLayout.tsx

@@ -626,8 +626,10 @@ function AdaptiveWorkspaceLayoutContent(
     workspaceInspector !== null && workspaceInspector.active && panes.auxiliaryPaneVisible
       ? (panes.auxiliaryPaneWidth ?? 0)
       : 0;
+  // Android's split content is a rounded card: keep it off the screen edge like the list card.
+  const contentEndGap = Platform.OS === "android" && layout.usesSplitView ? 4 : 0;
   const contentTargetWidth = layout.usesSplitView
-    ? Math.max(0, panes.contentPaneWidth - inspectorColumnTargetWidth)
+    ? Math.max(0, panes.contentPaneWidth - inspectorColumnTargetWidth - contentEndGap)
     : null;
   const [listPaneSizing, setListPaneSizing] = useState({
     viewportWidth,
@@ -936,6 +938,7 @@ function AdaptiveWorkspaceLayoutContent(
                   flex: 1,
                   width: contentTargetWidth,
                   alignSelf: contentAnchor.end ? "flex-end" : "flex-start",
+                  marginRight: contentAnchor.end ? contentEndGap : 0,
                 }
               : { flex: 1 }
           }