feat(IAV-1235): SAV dashboard improvements & inactive chat state across all agents
Summary
- Remove KPIs from SAV dashboard
- Fix sticky sub-tabs overlap in SAV configuration section
- Disable sub-agents section with "Bientôt disponible" label
- Hide status badge/toggle for coming soon integration cards (Shopify)
- Dashboard agent card title color → white
- Sub-agents section width aligned with Agents/Chat buttons
- Disable chat input with gendered inactive message across all agents (e.g. "Votre agent Ayal est inactif" / "Votre agente Ziri est inactive")
- Disable chat agent dropdown when agent is inactive
Closes IAV-1235