iOS: Code-Review-Korrekturen an Icon/Info.plist/Projekt

- hexagon.svg (neues App-Icon) mit einchecken; alte Icon-SVGs entfernt
- LSApplicationCategoryType ins Info.plist: bei GENERATE_INFOPLIST_FILE=NO
  wird die INFOPLIST_KEY_*-Build-Einstellung NICHT ins gebaute Plist
  uebernommen -> Kategorie 'utilities' landete bisher nirgends
- Info.plist wieder handgepflegt (deutsche Kommentare zurueck), von Xcode
  weggeschriebene Doku wiederhergestellt
- iPhone bewusst nur Hochkant; iPad-Unterstuetzung wiederhergestellt
  (TARGETED_DEVICE_FAMILY zurueck auf 1,2), iPad behaelt alle Ausrichtungen
- ItemListView.swift im Projekt (von Xcode ergaenzt)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

ios/AppIcon.icon/icon.json

@@ -2,7 +2,7 @@
   "fill-specializations" : [
     {
       "value" : {
-        "automatic-gradient" : "display-p3:0.68468,0.62596,1.03953,1.00000",
+        "automatic-gradient" : "display-p3:0.49658,0.53906,0.88428,1.00000",
         "orientation" : {
           "start" : {
             "x" : 0.5,
@@ -18,7 +18,7 @@
     {
       "appearance" : "dark",
       "value" : {
-        "automatic-gradient" : "display-p3:0.23587,0.21584,0.35184,1.00000",
+        "automatic-gradient" : "display-p3:0.24018,0.26161,0.43578,1.00000",
         "orientation" : {
           "start" : {
             "x" : 0.5,
@@ -39,48 +39,20 @@
           "fill-specializations" : [
             {
               "value" : {
-                "solid" : "display-p3:0.00000,0.00000,0.00000,1.00000"
+                "solid" : "display-p3:0.99316,0.99316,0.99316,1.00000"
               }
             },
             {
               "appearance" : "dark",
               "value" : {
-                "solid" : "display-p3:0.58245,0.53181,0.88393,1.00000"
+                "solid" : "display-p3:0.99316,0.99316,0.99316,1.00000"
               }
             }
           ],
-          "glass" : true,
-          "image-name" : "stock-rotation.svg",
-          "name" : "stock-rotation",
+          "image-name" : "hexagon.svg",
+          "name" : "hexagon",
           "position" : {
-            "scale" : 1.7,
-            "translation-in-points" : [
-              0,
-              0
-            ]
-          }
-        },
-        {
-          "fill-specializations" : [
-            {
-              "appearance" : "dark",
-              "value" : {
-                "automatic-gradient" : "display-p3:0.42536,0.31875,0.88861,1.00000"
-              }
-            },
-            {
-              "appearance" : "tinted",
-              "value" : {
-                "automatic-gradient" : "extended-gray:0.25000,1.00000"
-              }
-            }
-          ],
-          "glass" : false,
-          "hidden" : true,
-          "image-name" : "barcode-gelesen.svg",
-          "name" : "barcode-gelesen",
-          "position" : {
-            "scale" : 1.4,
+            "scale" : 1.18,
             "translation-in-points" : [
               0,
               0