build(config): remove unused Flutter dependencies (#16)

Remove dependencies and asset declarations that are no longer referenced so the resolved package graph stays smaller and easier to verify.

pubspec.lock

@@ -65,14 +65,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.7"
-  cupertino_icons:
-    dependency: "direct main"
-    description:
-      name: cupertino_icons
-      sha256: "41e005c33bd814be4d3096aff55b1908d419fde52ca656c8c47719ec745873cd"
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.0.9"
   fake_async:
     dependency: transitive
     description:
@@ -216,14 +208,6 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
-  google_fonts:
-    dependency: "direct main"
-    description:
-      name: google_fonts
-      sha256: ba03d03bcaa2f6cb7bd920e3b5027181db75ab524f8891c8bc3aa603885b8055
-      url: "https://pub.dev"
-    source: hosted
-    version: "6.3.3"
   google_mobile_ads:
     dependency: "direct main"
     description:
@@ -385,7 +369,7 @@ packages:
     source: hosted
     version: "1.9.1"
   path_provider:
-    dependency: "direct main"
+    dependency: transitive
     description:
       name: path_provider
       sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"

pubspec.yaml

@@ -24,10 +24,6 @@ dependencies:
   flutter:
     sdk: flutter
 
-  # The following adds the Cupertino Icons font to your application.
-  # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^1.0.5
-  google_fonts: ^6.1.0
   provider: ^6.1.1
   google_mobile_ads: ^4.0.0
   flutter_vless: 1.1.5
@@ -36,7 +32,6 @@ dependencies:
   url_launcher: ^6.3.2
   flutter_secure_storage: ^10.3.1
   uuid: ^4.5.3
-  path_provider: ^2.1.5
   package_info_plus: ^6.0.0
 
 dev_dependencies:
@@ -56,7 +51,9 @@ flutter:
 
   # To add assets to your application, add an assets section, like this:
   assets:
-    - assets/
+    - assets/background.png
+    - assets/brand.png
+    - assets/finland_flag_256.png
 
   # An image asset can refer to one or more resolution-specific "variants", see
   # https://flutter.dev/assets-and-images/#resolution-aware.