Config sections (Basic, Mail, DNS, Firewall, …) rendered as a bare name. Add a
small data-driven icon before each: config files now carry a `# @icon <emoji>`
directive in their header, the config generator surfaces it as the subcategory's
`icon`, and the config editor prepends it to the section <h3> (covers every
render path — regular/master/toggle/domains/catalogs/whitelist — since they all
drop displaySubcategory straight into the heading).
- webui_generate_configs.sh: parse `# @icon` (first 10 lines) → emit "icon".
- config-manager.js: prepend subcategoryData.icon to the section title.
- configs/**: added an @icon to all 23 base config files (backup/general/network/
security/webui). The live install's config files get the same directive + a
configs.json regen so existing installs show the icons too.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
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