feat: Konten umbenennbar, Betrag-Spalte mit Euro im Kopf

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

finance/app/templates/index.html

@@ -16,17 +16,24 @@
 
 <table>
   <thead>
-    <tr><th>Konto</th><th>Bank</th><th>Saldo</th></tr>
+    <tr><th>Konto</th><th>Bank</th><th>Saldo</th><th>Umbenennen</th></tr>
   </thead>
   <tbody>
     {% for account, balance in balances %}
     <tr>
-      <td>{{ account.name }}</td>
+      <td class="account">{{ account.name }}</td>
       <td>{{ account.bank }}</td>
       <td class="{{ 'neg' if balance < 0 else '' }}">{{ '%.2f'|format(balance) }} €</td>
+      <td>
+        <form class="inline-form" hx-ext="json-form" hx-patch="/api/accounts/{{ account.id }}"
+              hx-swap="none" hx-on::after-request="if(event.detail.successful){window.location.reload()}">
+          <input type="text" name="name" value="{{ account.name }}" required maxlength="100">
+          <button type="submit">Umbenennen</button>
+        </form>
+      </td>
     </tr>
     {% else %}
-    <tr><td colspan="3">Keine Konten angelegt.</td></tr>
+    <tr><td colspan="4">Keine Konten angelegt.</td></tr>
     {% endfor %}
   </tbody>
 </table>