fix booking internal server error due to db not accepting null value

fixed copy right on booking form
update notification seeder

database/migrations/2018_08_08_103115_make_nullable_in_bookings_table.php

@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class MakeNullableInBookingsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('bookings', function (Blueprint $table) {
+            $table->string('company_name')->nullable()->change();
+            $table->string('company_address')->nullable()->change();
+            $table->string('bank_address')->nullable()->change();
+            $table->string('swift_code')->nullable()->change();
+            $table->string('cnap')->nullable()->change();
+            $table->string('term')->nullable()->change();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('bookings', function (Blueprint $table) {
+            //
+        });
+    }
+}