feat: Update app icons and manifest for improved branding and localization support

- Changed AndroidManifest.xml to use new launcher icon.
- Added new launcher icon images for various resolutions in Android mipmap directories.
- Updated iOS project.pbxproj and Info.plist to version 13.
- Refactored iOS AppIcon asset catalog with new icon sizes and updated Contents.json.
- Modified pubspec.yaml to include flutter_launcher_icons for automatic icon generation.
- Updated web manifest colors for better branding.
- Added new favicon and icon images for web support.

macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -1,68 +1,68 @@
 {
-  "images" : [
-    {
-      "size" : "16x16",
-      "idiom" : "mac",
-      "filename" : "app_icon_16.png",
-      "scale" : "1x"
+    "info": {
+        "version": 1,
+        "author": "xcode"
     },
-    {
-      "size" : "16x16",
-      "idiom" : "mac",
-      "filename" : "app_icon_32.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "32x32",
-      "idiom" : "mac",
-      "filename" : "app_icon_32.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "32x32",
-      "idiom" : "mac",
-      "filename" : "app_icon_64.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "128x128",
-      "idiom" : "mac",
-      "filename" : "app_icon_128.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "128x128",
-      "idiom" : "mac",
-      "filename" : "app_icon_256.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "256x256",
-      "idiom" : "mac",
-      "filename" : "app_icon_256.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "256x256",
-      "idiom" : "mac",
-      "filename" : "app_icon_512.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "512x512",
-      "idiom" : "mac",
-      "filename" : "app_icon_512.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "512x512",
-      "idiom" : "mac",
-      "filename" : "app_icon_1024.png",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
+    "images": [
+        {
+            "size": "16x16",
+            "idiom": "mac",
+            "filename": "app_icon_16.png",
+            "scale": "1x"
+        },
+        {
+            "size": "16x16",
+            "idiom": "mac",
+            "filename": "app_icon_32.png",
+            "scale": "2x"
+        },
+        {
+            "size": "32x32",
+            "idiom": "mac",
+            "filename": "app_icon_32.png",
+            "scale": "1x"
+        },
+        {
+            "size": "32x32",
+            "idiom": "mac",
+            "filename": "app_icon_64.png",
+            "scale": "2x"
+        },
+        {
+            "size": "128x128",
+            "idiom": "mac",
+            "filename": "app_icon_128.png",
+            "scale": "1x"
+        },
+        {
+            "size": "128x128",
+            "idiom": "mac",
+            "filename": "app_icon_256.png",
+            "scale": "2x"
+        },
+        {
+            "size": "256x256",
+            "idiom": "mac",
+            "filename": "app_icon_256.png",
+            "scale": "1x"
+        },
+        {
+            "size": "256x256",
+            "idiom": "mac",
+            "filename": "app_icon_512.png",
+            "scale": "2x"
+        },
+        {
+            "size": "512x512",
+            "idiom": "mac",
+            "filename": "app_icon_512.png",
+            "scale": "1x"
+        },
+        {
+            "size": "512x512",
+            "idiom": "mac",
+            "filename": "app_icon_1024.png",
+            "scale": "2x"
+        }
+    ]
+}