Use controller vs closure so route is cacheable. Closes #24 (#26)

* Use controller vs closure so route is cacheable. Closes #24

* Apply fixes from StyleCI (#25)

src/ForgetSheet.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Grosv\EloquentSheets;
+
+use Illuminate\Support\Facades\File;
+
+class ForgetSheet
+{
+    public function execute($id)
+    {
+        File::delete(config('sushi.cache-path').'/'.$id.'.sqlite');
+
+        return response()->noContent();
+    }
+}

src/routes.php

@@ -1,11 +1,6 @@
 <?php
 
-use Illuminate\Support\Facades\File;
-use Illuminate\Support\Facades\Request;
+use Grosv\EloquentSheets\ForgetSheet;
 use Illuminate\Support\Facades\Route;
 
-Route::get('/eloquent_sheets_forget/{id?}', function (Request $request, $id) {
-    File::delete(config('sushi.cache-path').'/'.$id.'.sqlite');
-
-    return response()->noContent();
-});
+Route::get('/eloquent_sheets_forget/{id?}', [ForgetSheet::class, 'execute']);