fix: Bei einem langen Formular war "Speichern" nicht erreichbar

Der Dialog wuchs mit seinem Inhalt und lief unten aus dem Bild. Scrollen ging
nicht – damit war der Knopf schlicht weg, und das Konto liess sich nicht mehr
speichern.

Jetzt bleibt der Dialog im Fenster: Kopf und Knopfleiste stehen fest, nur der
Inhalt dazwischen rollt.

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

web/src/components/IconPicker.jsx

@@ -1,14 +1,25 @@
 import Icon from "./Icon";
 
 export const ACCOUNT_ICONS = [
-  "wallet", "landmark", "piggy-bank", "credit-card", "trending-up", "banknote", "coins",
+  "wallet", "landmark", "piggy-bank", "vault", "credit-card", "trending-up",
+  "banknote", "coins",
 ];
 
+// Lose nach Lebensbereich sortiert, damit man beim Suchen nicht das ganze
+// Gitter absuchen muss: Wohnen, Alltag, Unterwegs, Gesundheit & Koerper,
+// Freizeit, Familie, Geld & Vorsorge, Sonstiges.
 export const CATEGORY_ICONS = [
-  "home", "shopping-cart", "utensils", "car", "shield", "heart-pulse", "film",
-  "refresh-ccw", "shirt", "wifi", "plane", "gift", "graduation-cap", "dumbbell",
-  "paw-print", "piggy-bank", "percent", "more-horizontal", "banknote", "coins",
-  "receipt", "list", "landmark", "wallet", "trending-up", "credit-card",
+  "home", "bed", "zap", "droplet", "flame", "wifi", "monitor", "cloud",
+  "shopping-cart", "shopping-bag", "store", "utensils", "coffee", "wine",
+  "shirt", "scissors", "sparkle",
+  "car", "fuel", "bus", "bike", "plane", "ticket",
+  "heart-pulse", "pill", "dumbbell",
+  "film", "music", "book-open", "newspaper", "graduation-cap", "paw-print",
+  "sprout", "cake", "gift", "baby", "heart",
+  "piggy-bank", "vault", "umbrella", "life-buoy", "shield", "scale",
+  "briefcase", "wrench", "hammer", "phone", "refresh-ccw", "percent",
+  "receipt", "banknote", "coins", "landmark", "wallet", "trending-up",
+  "credit-card", "list", "more-horizontal",
 ];
 
 // Auswahlgitter für ein Icon. `value` ist der aktuell gewählte Icon-Name.