Tambahkan dependensi dan konfigurasi awal proyek

- Tambahkan dependensi utama: GetX, Supabase, SharedPreferences
- Konfigurasi struktur awal aplikasi dengan GetX
- Inisialisasi layanan Supabase
- Perbarui konfigurasi plugin untuk berbagai platform
- Ganti template default dengan struktur aplikasi baru

pubspec.yaml

@@ -2,7 +2,7 @@ name: penyaluran_app
 description: "A new Flutter project."
 # The following line prevents the package from being accidentally published to
 # pub.dev using `flutter pub publish`. This is preferred for private packages.
-publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+publish_to: "none" # Remove this line if you wish to publish to pub.dev
 
 # The following defines the version and build number for your application.
 # A version number is three numbers separated by dots, like 1.2.43
@@ -35,6 +35,21 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.8
 
+  # GetX untuk manajemen state
+  get: ^4.6.6
+
+  # Supabase untuk autentikasi dan database
+  supabase_flutter: ^2.3.4
+
+  # Untuk menyimpan data lokal
+  shared_preferences: ^2.2.2
+
+  # Untuk validasi form
+  form_validator: ^2.1.1
+
+  # Untuk tampilan loading
+  flutter_spinkit: ^5.2.0
+
 dev_dependencies:
   flutter_test:
     sdk: flutter
@@ -51,7 +66,6 @@ dev_dependencies:
 
 # The following section is specific to Flutter packages.
 flutter:
-
   # The following line ensures that the Material Icons font is
   # included with your application, so that you can use the icons in
   # the material Icons class.