feat: make Members tab open in new tab with external link icon (#22471)

- Add isExternalLink: true to Members tab configuration
- Change href to full URL https://app.cal.com/settings/organizations/i/members
- VerticalTabItem component will automatically show external link icon and open in new tab

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Anik Dhabal Babu <81948346+anikdhabal@users.noreply.github.com>
Co-authored-by: Udit Takkar <53316345+Udit-takkar@users.noreply.github.com>

apps/web/app/(use-page-wrapper)/settings/(settings-layout)/SettingsLayoutAppDirClient.tsx

@@ -92,7 +92,8 @@ const getTabs = (orgBranding: OrganizationBranding | null) => {
           ? [
               {
                 name: "members",
-                href: `/settings/organizations/${orgBranding.slug}/members`,
+                href: "https://app.cal.com/settings/organizations/i/members",
+                isExternalLink: true,
               },
             ]
           : []),