add more support for custom nav icon

Author: sten

README.md

@@ -135,6 +135,9 @@ You can customize the navigation icon by configuring the `navigation-icon` varia
 'navigation_icon' => 'heroicon-o-language',
 ```
 
+Or you can replace the icon with your own custom icon set, by registering a different icon for this icon:
+`filament-chained-translation-manager::nav-icon`.
+
 ## Usage
 
 The library creates a new directory for the new translations, see [Laravel Chained Translator](https://github.com/statikbe/laravel-chained-translator).

src/Pages/TranslationManagerPage.php

@@ -7,6 +7,7 @@
 use Filament\Forms\Components\Select;
 use Filament\Forms\Components\TextInput;
 use Filament\Pages\Page;
+use Filament\Support\Facades\FilamentIcon;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\Str;
@@ -89,9 +90,8 @@ public static function getNavigationLabel(): string
 
     public static function getNavigationIcon(): ?string
     {
-        return config()->has('filament-translation-manager.navigation_icon')
-            ? config('filament-translation-manager.navigation_icon')
-            : 'heroicon-o-language';
+        return FilamentIcon::resolve('filament-chained-translation-manager::nav-icon') ??
+            config('filament-translation-manager.navigation_icon', 'heroicon-o-language');
     }
 
     public function getTitle(): string