feat: add default user warning to ACL dialog and refine chip theming}
- Add warning alert when editing the 'default' ACL user in all three
frontends (Angular, React, Vue) to prevent accidental lockout
- Add `defaultUserWarning` i18n string across all 54 languages
- Improve ACL chip styling in Angular to use theme-aware CSS variables
(--p3xr-btn-primary-bg/color, --p3xr-btn-warn-bg/color)
- Switch React chip rendering from renderTags to renderValue with
inline theme-derived colors via useTheme()
- Inline React commands Autocomplete for deny/allow color logic
- Change Vue chip variant from "tonal" to "flat" for consistent look
- Improve Vue chipColor() extraction to handle title/raw/value props
- Always show placeholder text in chip inputs regardless of selection
- Add color-scheme CSS overrides in Vue App.vue so scrollbars follow
the active theme (light/dark)
- Enhance Vue theme store to set colorScheme on html, body, and meta
tag for proper browser dark-mode integration
- Fix syntax error in zh-TW and zn strings (missing newline between
acl and overview sections)
- Wrap Vue switch/checkbox in divs for consistent spacing
- Bump version to v2026.4.438