Migrations: Updated with type hints instead of php doc

Also updated code to properly import used facades.
For #4903

database/migrations/2015_07_12_190027_create_pages_table.php

@@ -2,15 +2,14 @@
 
 use Illuminate\Database\Migrations\Migration;
 use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
 
 return new class extends Migration
 {
     /**
      * Run the migrations.
-     *
-     * @return void
      */
-    public function up()
+    public function up(): void
     {
         Schema::create('pages', function (Blueprint $table) {
             $table->increments('id');
@@ -27,10 +26,8 @@ return new class extends Migration
 
     /**
      * Reverse the migrations.
-     *
-     * @return void
      */
-    public function down()
+    public function down(): void
     {
         Schema::drop('pages');
     }