- 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/seeds/AccountsSeeder.php

@@ -1,41 +0,0 @@
-<?php
-
-use Carbon\Carbon;
-// use Database\DisableForeignKeys;
-// use Database\TruncateTable;
-use Illuminate\Database\Seeder;
-use Illuminate\Support\Facades\DB;
-
-class AccountsTableSeeder extends Seeder
-{
-    public function run()
-    {
-      
-        DB::table('accounts')->insert([
-            [
-                'login' => "admin",
-                'email' => "admin@localhost",
-                'password' => bcrypt('secret'),
-                'created_at' => Carbon::now(),
-            ],
-            [
-                'login' => "Submitty",
-                'email' => "submitter@localhost",
-                'password' => bcrypt('secret'),
-                'created_at' => Carbon::now(),
-            ],
-            [
-                'login' => "Eddy",
-                'email' => "editor@localhost",
-                'password' => bcrypt('secret'),
-                'created_at' => Carbon::now(),
-            ],
-            [
-                'login' => "Review",
-                'email' => "review@localhost",
-                'password' => bcrypt('secret'),
-                'created_at' => Carbon::now(),
-            ],
-        ]);
-    }
-}