- laravel framework upgrade frpm 7.x to 8. see also: https://laravel.com/docs/8.x/upgrade#assert-exact-json-method

- use  PHP7 null coalesce operator instead of laravel optional method
- change Breadcrumbs::register method to Bredcrumbs::for method
- composer updates

database/seeders/DatabaseSeeder.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Database\Seeders;
+
+use Illuminate\Database\Seeder;
+// use Carbon\Carbon;
+
+class DatabaseSeeder extends Seeder
+{
+    /**
+     * Run the database seeds.
+     *
+     * @return void
+     */
+    public function run()
+    {
+        // Model::unguard();
+
+        // DB::table('users')->insert([
+        //     'name' => str_random(10),
+        //     'email' => str_random(10).'@gmail.com',
+        //     'password' => bcrypt('secret'),
+        // ]);
+
+   
+        // $this->call('CategoryTableSeeder');
+        // $this->call('BookTableSeeder');
+        $this->call('MimetypeTableSeeder');
+        $this->call('AccountsTableSeeder');
+        $this->call('RolesTableSeeder');
+        $this->call('LicencesTableSeeder');
+        $this->call('LanguagesTableSeeder');
+        $this->call('PagesTableSeeder');
+        $this->call('CollectionsTableSeeder');
+        $this->call('ProjectsTableSeeder');
+        $this->call('MessagesTableSeeder');        
+    }
+}