Accessibility: Ouch! There's no pinch-to-zoom in Markdown (.md) document viewer/editor!

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I'm legally blind and just trying NextCloud AIO (installed on my own server) for the first time. I noticed immediately that I cannot pinch-to-zoom the markdown editor. However, I opened a sample .docx file and pinch-to-zoom works there.

(Also -- maybe separate feature request -- respecting the user's iOS preferred text size would be great / mitigate this issue.)

Steps to reproduce

1. Sign in to NextCloud on iOS.
2. Open any markdown document.
3. Try pinch-to-zoom.

Expected behaviour

The text should zoom in just like it does with docx files.

Actual behaviour

Nothing happens when trying to pinch to zoom.

Logs

N/A

Reasoning or why should it be changed/implemented?

Accessibility -- very important!

Environment data

iOS version:
iOS 18.3.2

Nextcloud iOS app version:
6.5.0.5

Server operating system:
Debian

Web server: Apache, nginx
Tailscale (via Headscale with custom domain) > Caddy > NextCloud Apache

Database:
Postgres

PHP version:

Nextcloud version: see Nextcloud admin page
Docker - AIO 31.0.2

Start by reproducing the issue in the iOS Markdown document viewer/editor and compare its gesture behavior with the working DOCX viewer. Trace the Markdown viewer entry point to determine where pinch gestures and text scaling are handled; done means a two-finger pinch visibly zooms Markdown text as described in the expected behavior.