Jam Balaya e39b5898f1 Ignore empty categories when sizing export feed selector (#9154) ...

Follow-up to #9079.

## Summary

- Ignore empty categories when sizing the export feed selector.
- Keep the selector height aligned with the category headings and feeds that are actually rendered.
- Preserve the grouped export choices and export request format introduced in #9079.

## Root cause

The view skipped categories without feeds when rendering `<optgroup>` elements, but the `size` calculation counted every category returned by the DAO. Empty categories therefore increased the listbox height without adding any visible content.

## Before / After

| Before | After |
| --- | --- |
| <img width="1400" height="1000" alt="9079-followup-before-1400x1000" src="https://github.com/user-attachments/assets/f225d97f-8486-4e7d-87eb-cdafd42b53a5" /> | <img width="1400" height="1000" alt="9079-followup-after-1400x1000" src="https://github.com/user-attachments/assets/aeb254e0-6410-4f6f-a0d8-3051c5dd2c83" /> |
| `size="10"` for two category headings and two feeds, leaving unnecessary empty space. | `size="4"` for the same data, matching the four rendered rows. |

2026-08-01 15:00:41 +02:00

..

export.phtml

Use strict_types (#5830)

2023-11-16 22:43:00 +01:00

index.phtml

Ignore empty categories when sizing export feed selector (#9154)

2026-08-01 15:00:41 +02:00

sqlite.phtml

[sqlite export] add username and timestamp (#8169)

2025-11-02 20:39:41 +01:00