[Bug Report] Shift+click doesn't select multiple items in tables

### Describe the bug:
Pressing Shift+click on a table item (rule) should select all items from the previously selected one to the clicked item.

Include the following information:
- OpenSnitch version: 1.7.2
- OS: Ubuntu Linux
- OS version: 25.04
- Window Manager: KDE 6

### To Reproduce:

Steps to reproduce the behavior:
1. Go to Rules tab
2. Click on the first item
3. Shift+click on the 10th item
4. Notice that only the 10th item got selected

### Expected behavior (optional):
Items 1 through 10 should be selected

### Additional context:
https://github.com/evilsocket/opensnitch/issues/560#issuecomment-2702939707