FR: Font customization

[williamcheuk03]

• Able to specify the font, including interface, text and monospace font
• Able to use a specific font by using drop-down list

[MaKammi]

Thanks. Part of this existed already: the Content font setting, with serif, sans-serif,
monospace or any installed font by name from a curated list with a live preview per row and a
check whether the font is actually present on the device. What was missing were the other two
slots — the interface font was only adjustable inside the custom theme ("My design"), and there was
no monospace setting at all (code blocks just said monospace).

On main (258bc60) it is one Fonts card under Settings → Appearance with three fields:
Interface, Content and Code, each with "Theme default", a few presets, and the same
picker. The interface font moved out of "My design" (an existing choice there is carried over
once), and the code font finally reaches code blocks, inline code and the code mode. The setting is
kept per device, because the fonts installed on your laptop are not the ones on your phone; the
mobile app has the same three fields.

One caveat on the drop-down: it is a curated catalogue per platform (with the installed check),
not a live enumeration of everything on your system. The WebView has no API for that outside
Chromium, and doing it natively would mean separate code on five platforms for a longer list. Any
font the catalogue does not know can still be typed in by name.

I will close this with the release that ships it.

[MaKammi]

This is in 0.8.1, out now.

The Font card sits under Settings → App → Appearance with three rows — Interface,
Content and Code — each with "Theme default", a few presets and the catalog with a live
preview; Code offers monospace faces only. It applies to every theme, not just the custom one,
and a font you had saved in "My theme" moves into the Interface row on update.

Handbook: https://github.com/plainva/plainva/blob/main/docs/user/en/Getting_Started.md#customizing-the-interface

Thanks for the request.