agama-project / agama / 15731940888 / 3 – web

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fix(web) improve font support for Chinese and Georgian languages (#2488)

## Problem

The installation ISO’s embedded browser failed to render some languages
correctly (e.g., Chinese, Georgian). This issue did not appear when
using a remote browser, which highlighted inconsistencies in font
availability.

Inspection using Firefox’s [font
tools](https://firefox-source-docs.mozilla.org/devtools-user/page_inspector/how_to/edit_fonts/index.html)
revealed the browser was falling back to [DejaVu
fonts](https://dejavu-fonts.github.io/) in the remote system due to
missing or misconfigured `@font-face` rules. In particular,

- Chinese was not being served due to a copy-paste error in its
declaration.
- Georgian fonts were missing entirely.

## Solution

- Add proper `@font-face` declarations for Georgian using [Noto Sans
Georgian](https://fonts.google.com/noto/specimen/Noto+Sans+Georgian)
- Fix the font-family name in the Chinese font-face rule.
- Ensure Noto Sans is used as a first fallback for the SUSE font.

Additionally, a configuration file has been added to the live ISO to
enable the use of fonts located at `/usr/share/agama/web_ui/fonts`. This
change addresses cases where native HTML elements, such as `<option>`,
were rendering using system fonts instead of those served by Agama.

Together, these updates improve multilingual font rendering and ensure a
consistent visual appearance, even on systems that lack certain fonts.
While it's unlikely, users accessing the interface via a remote browser
from a system without these fonts might encounter minor rendering
issues. However, in such cases, the fonts relevant to their language
should still be available, minimizing the impact.

---

Related to 

  * https://github.com/agama-project/agama/pull/2467
  * https://github.com/agama-project/agama/issues/2395
  * https://trello.com/c/NpSkfUAD (protected link)
  * https://bugzilla.suse.com/show_bug.cgi?id=1236261 (protected link)

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