Fixed tags dialog and improved tag selection screen

Author: ReightI

lib/utils/themes.dart

@@ -31,7 +31,6 @@ final ThemeData lightTheme = ThemeData.light(useMaterial3: true).copyWith(
     shadowColor: Colors.black54,
     elevation: 0.0,
     scrolledUnderElevation: 5.0,
-    shadowColor: Colors.black54,
     iconTheme: IconThemeData(
       color: AppColors.accent,
     ),
@@ -203,7 +202,6 @@ final ThemeData darkTheme = ThemeData.dark(useMaterial3: true).copyWith(
     shadowColor: Colors.black54,
     elevation: 0.0,
     scrolledUnderElevation: 5.0,
-    shadowColor: Colors.black54,
     iconTheme: IconThemeData(
       color: AppColors.accent,
     ),