Rewrite GroupGroupRatioRules and GroupSpecialUsableRules to group rules
by user group in collapsible sections instead of a flat table. Default
collapsed to reduce visual clutter when many rules exist. Fix i18n
translations for ja, zh-TW with proper native text; add missing keys.
- Replaced ModelRatioSettings with ModelPricingCombined in the RatioSetting component.
- Updated tab structure to prioritize pricing settings over model settings.
- Removed unused imports for ModelRatioSettings and ModelSettingsVisualEditor.
CaIon