Finanzen: Einstellungen, Rechnungen am Kunden, InvoiceNinja aus der Oberflaeche entfernt

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/pages/CustomersPage.jsx

@@ -1,6 +1,6 @@
 import { useState, useMemo } from 'react'
 import { Link } from 'react-router-dom'
-import { FaSpinner, FaPlus, FaStar, FaFileInvoiceDollar } from 'react-icons/fa6'
+import { FaSpinner, FaPlus, FaStar } from 'react-icons/fa6'
 import { useCustomers } from '../hooks/useCustomers'
 import { useAuth } from '../context/AuthContext'
 import { createLead, customerStage, isArchived } from '../lib/leads'
@@ -37,7 +37,7 @@ export default function CustomersPage() {
     <div className="page">
       <PageHeader
         title="Kunden"
-        subtitle="Potenzielle Kunden (Leads) und feste Kunden - eine Pflege, Sync mit InvoiceNinja"
+        subtitle="Potenzielle Kunden (Leads) und feste Kunden – eine Pflege"
         actions={
           <>
             {isAdmin && (
@@ -116,7 +116,6 @@ export default function CustomersPage() {
                       {st === 'lead' && <Badge tone="warn" dot>Lead</Badge>}
                       {st === 'customer' && <Badge tone="ok" dot>Fester Kunde</Badge>}
                       {st === 'lost' && <Badge tone="muted">Abgesagt</Badge>}
-                      {c.invoiceNinjaClientId && <Badge tone="info"><FaFileInvoiceDollar /> Ninja</Badge>}
                     </div>
                   </Link>
                 )