Update billing limit banner copy

Reword the no-limit-configured banner to "Add a billing limit to your
account to prevent overspending" and relabel its button "Billing limit
settings".

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

Author: claude

apps/webapp/app/components/billing/OrgBanner.tsx

@@ -157,14 +157,14 @@ function NoLimitConfiguredBanner() {
             to={v3BillingLimitsPath(organization)}
           >
             <span className="mx-auto grow self-center truncate text-text-bright system:text-white">
-              Configure billing limit
+              Billing limit settings
             </span>
           </LinkButton>
         ) : undefined
       }
     >
       {canManageBillingLimits
-        ? "Protect your organization from unexpected usage spikes."
+        ? "Add a billing limit to your account to prevent overspending"
         : "Billing limits are not configured for this organization. Contact an organization administrator to configure them."}
     </AnimatedOrgBannerBar>
   );