feat(facade): implement Theme facade and helper function

composer.json

@@ -31,7 +31,10 @@
         "psr-4": {
             "Qirolab\\Theme\\": "src",
             "Qirolab\\Theme\\Database\\Factories\\": "database/factories"
-        }
+        },
+        "files": [
+            "src/helpers.php"
+        ]
     },
     "autoload-dev": {
         "psr-4": {

src/Facades/Theme.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Qirolab\Theme\Facades;
+
+use Illuminate\Support\Facades\Facade;
+
+class Theme extends Facade
+{
+    /**
+     * Get the registered name of the component.
+     *
+     * @return string
+     */
+    protected static function getFacadeAccessor(): string
+    {
+        return 'theme';
+    }
+}

src/ThemeServiceProvider.php

@@ -30,9 +30,18 @@ public function register()
 
         $this->registerThemeFinder();
 
+        $this->registerTheme();
+
         $this->registerSolutionProvider();
     }
 
+    protected function registerTheme(): void 
+    {
+        $this->app->singleton('theme', function ($app) {
+            return new Theme();
+        });
+    }
+
     protected function mergeConfig(): void
     {
         $this->mergeConfigFrom(__DIR__.'/../config/theme.php', 'theme');

src/helpers.php

@@ -0,0 +1,13 @@
+<?php
+
+if (! function_exists('theme')) {
+    /**
+     * Get the Theme instance.
+     *
+     * @return \Qirolab\Theme\Theme
+     */
+    function theme()
+    {
+        return app('theme');
+    }
+}