frontend: Separated Panels in Care team settings

Apply the same COSS Separated Panels treatment used in the other settings
frames (Preferences, AI) to the Care team section: pass separated to its
SettingsSection so the cards render as distinct panels on a muted tray.
The members list keeps p-0/overflow-hidden so its divided rows sit flush
inside their panel.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/components/settings/settings-care-team.tsx

@@ -136,6 +136,7 @@ export function CareTeamPanel({
   return (
     <SettingsSection
       description={t("settings.careTeam.description")}
+      separated
       title={t("settings.careTeam.title")}
     >
       {error && (
@@ -157,7 +158,7 @@ export function CareTeamPanel({
         </SettingsCard>
       )}
 
-      <SettingsCard className="divide-y divide-border">
+      <SettingsCard className="divide-y divide-border overflow-hidden p-0">
         {loading ? (
           <p className="p-6 text-center text-sm text-muted-foreground">
             {t("settings.careTeam.loading")}