feat(ui): add premium PluriWave redesign

lib/app.dart

@@ -1,12 +1,14 @@
+import 'dart:async';
 import 'package:flutter/material.dart';
-import 'package:google_fonts/google_fonts.dart';
 import 'package:provider/provider.dart';
 import 'estado/estado_radio.dart';
 import 'pantallas/pantalla_inicio.dart';
 import 'pantallas/pantalla_buscar.dart';
 import 'pantallas/pantalla_favoritos.dart';
 import 'pantallas/pantalla_ajustes.dart';
+import 'tema/pluriwave_theme.dart';
 import 'widgets/mini_reproductor.dart';
+import 'widgets/pluri_icon.dart';
 
 class PluriWaveApp extends StatelessWidget {
   const PluriWaveApp({super.key});
@@ -18,36 +20,13 @@ class PluriWaveApp extends StatelessWidget {
       child: MaterialApp(
         title: 'PluriWave',
         debugShowCheckedModeBanner: false,
-        theme: _buildTheme(Brightness.dark),
-        darkTheme: _buildTheme(Brightness.dark),
+        theme: PluriWaveTheme.dark(),
+        darkTheme: PluriWaveTheme.dark(),
         themeMode: ThemeMode.dark,
         home: const _PaginaPrincipal(),
       ),
     );
   }
-
-  ThemeData _buildTheme(Brightness brightness) {
-    final colorScheme = ColorScheme.fromSeed(
-      seedColor: const Color(0xFF6750A4),
-      brightness: brightness,
-    );
-    return ThemeData(
-      useMaterial3: true,
-      colorScheme: colorScheme,
-      textTheme: GoogleFonts.interTextTheme(
-        ThemeData(brightness: brightness).textTheme,
-      ),
-      cardTheme: CardThemeData(
-        elevation: 0,
-        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
-        color: colorScheme.surfaceContainerLow,
-      ),
-      snackBarTheme: SnackBarThemeData(
-        behavior: SnackBarBehavior.floating,
-        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
-      ),
-    );
-  }
 }
 
 class _PaginaPrincipal extends StatefulWidget {
@@ -59,6 +38,8 @@ class _PaginaPrincipal extends StatefulWidget {
 
 class _PaginaPrincipalState extends State<_PaginaPrincipal> {
   int _indice = 0;
+  StreamSubscription<String>? _errorSubscription;
+  EstadoRadio? _estadoSuscrito;
 
   static const _paginas = [
     PantallaInicio(),
@@ -69,23 +50,35 @@ class _PaginaPrincipalState extends State<_PaginaPrincipal> {
 
   static const _destinos = [
     NavigationDestination(
-      icon: Icon(Icons.home_outlined),
-      selectedIcon: Icon(Icons.home),
+      icon: PluriIcon(glyph: PluriIconGlyph.home),
+      selectedIcon: PluriIcon(
+        glyph: PluriIconGlyph.home,
+        variant: PluriIconVariant.activeGlow,
+      ),
       label: 'Inicio',
     ),
     NavigationDestination(
-      icon: Icon(Icons.search_outlined),
-      selectedIcon: Icon(Icons.search),
+      icon: PluriIcon(glyph: PluriIconGlyph.search),
+      selectedIcon: PluriIcon(
+        glyph: PluriIconGlyph.search,
+        variant: PluriIconVariant.activeGlow,
+      ),
       label: 'Buscar',
     ),
     NavigationDestination(
-      icon: Icon(Icons.favorite_outline),
-      selectedIcon: Icon(Icons.favorite),
+      icon: PluriIcon(glyph: PluriIconGlyph.favorites),
+      selectedIcon: PluriIcon(
+        glyph: PluriIconGlyph.favorites,
+        variant: PluriIconVariant.activeGlow,
+      ),
       label: 'Favoritos',
     ),
     NavigationDestination(
-      icon: Icon(Icons.settings_outlined),
-      selectedIcon: Icon(Icons.settings),
+      icon: PluriIcon(glyph: PluriIconGlyph.settings),
+      selectedIcon: PluriIcon(
+        glyph: PluriIconGlyph.settings,
+        variant: PluriIconVariant.activeGlow,
+      ),
       label: 'Ajustes',
     ),
   ];
@@ -93,7 +86,13 @@ class _PaginaPrincipalState extends State<_PaginaPrincipal> {
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
-    context.read<EstadoRadio>().errorStream.listen((msg) {
+    final estado = context.read<EstadoRadio>();
+    if (identical(_estadoSuscrito, estado) && _errorSubscription != null) {
+      return;
+    }
+    _errorSubscription?.cancel();
+    _estadoSuscrito = estado;
+    _errorSubscription = estado.errorStream.listen((msg) {
       if (!mounted) return;
       ScaffoldMessenger.of(context).showSnackBar(
         SnackBar(
@@ -105,6 +104,12 @@ class _PaginaPrincipalState extends State<_PaginaPrincipal> {
     });
   }
 
+  @override
+  void dispose() {
+    _errorSubscription?.cancel();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(