[Bug]: [Mobile] Category autocomplete drop-down unresponsive on iPadOS 26 (Safari/Brave)

### What happened?

When entering a new transaction on iPad, the category selection drop-down opens but tapping any item has no effect — the category is never selected and the drop-down remains open.

The payee drop-down works correctly under identical conditions.

### How can we reproduce the issue?

1. Open Actual Budget (v26.3.0 ) in Safari on iPad (iPadOS 26.3.1)
2. Navigate to any account and tap + Add New in the transaction list
3. Tap the Category field — the drop-down opens and categories are listed
4. Tap any category in the list

Expected: Category is selected and field populates

Actual: Nothing happens; category is not applied

### Where are you hosting Actual?

Docker

### What browsers are you seeing the problem on?

Safari

### Operating System

Mobile Device