refactor(SelectionStatusBar): clean structure and restore scroll position indicator

- Refactor SelectionStatusBar into structured sections (left info, remote badge, filter, jump buttons, slider, position)
- Restore position indicator using selectedIndex / visibleIndex
- Improve readability and maintainability of status bar view
- Minor UI cleanup for jump navigation buttons

Author: Iakov Senatov

GUI/Sources/Features/Panels/FileTable/FilePanels/FileTableRowsView.swift

@@ -41,10 +41,11 @@
                             onDirectoryAction: { action, f in handleDirectoryAction(action, f) },
                             onMultiSelectionAction: { action in handleMultiSelectionAction(action) }
                         )
+                        .frame(maxWidth: .infinity, alignment: .leading)
+                        .fixedSize(horizontal: false, vertical: true)
                     }
                 }
             }
-            .drawingGroup(opaque: false)
             .transaction { $0.disablesAnimations = true }  // Disable animations for large lists
         }
     }