Can't keep users apart in drop down list in transaction tab

**Describe the bug**
When you have multiple users with the same name there is no clear way of keeping them apart in the drop down list in the transaction tab.

**Expected behavior**
See the name and something unique to keep the users apart

**Screenshots**

**Desktop (please complete the following information):**
- OS: Windows 10 / Windows 11
- Browser Chrome, Firefox
- Version [e.g. 22]

Reproduce the issue in the transaction tab with multiple users sharing the same name, then trace the user dropdown to the relevant UI entry point. Done means each duplicate name includes a unique distinguishing detail, as requested; no test file is mentioned in the issue.

Written by the indexing model from the issue text.