[Bug] Range selection behaves incorrectly after renaming a file

[iamkartiknayak]

Issue/Description:
After renaming a file, shift-based range selection behaves inconsistently. The selection range appears to be calculated using the file’s previous position rather than its updated sorted position.

This results in unexpected files being selected.

Steps to Reproduce:

1. Create 5 files named: 1, 2, 3, 4, 5
2. Select file 2
3. Rename 2 → 10
4. Hold Shift and click file 1
5. Observe the resulting selection

Expected Behavior:
Range selection should respect the current sorted order after renaming.
The selection should include files between 1 and 10 based on their updated positions in the list.

Actual Behavior:
The selection range behaves as if the file still occupies its old position prior to renaming, leading to incorrect files being highlighted.

Other Notes:

• Likely related to selection anchor not updating after rename
• May require recalculating selection index after model reorder