Import latest app updates from streamline

An updated set of source files and initialization was provided by streamline to
address issues observed during initial testing. These files have been updated in
order to generate a new set of app images.

docker/streamline-src/vendor/owen-it/laravel-auditing/src/Models/Audit.php

@@ -1,37 +0,0 @@
-<?php
-
-namespace OwenIt\Auditing\Models;
-
-use Illuminate\Database\Eloquent\Model;
-
-/**
- * @property string $tags
- * @property string $event
- * @property array $new_values
- * @property array $old_values
- * @property mixed $user
- * @property mixed $auditable.
- */
-class Audit extends Model implements \OwenIt\Auditing\Contracts\Audit
-{
-    use \OwenIt\Auditing\Audit;
-
-    /**
-     * {@inheritdoc}
-     */
-    protected $guarded = [];
-
-    /**
-     * {@inheritdoc}
-     */
-    protected $casts = [
-        'old_values'   => 'json',
-        'new_values'   => 'json',
-        // Note: Please do not add 'auditable_id' in here, as it will break non-integer PK models
-    ];
-
-    public function getSerializedDate($date)
-    {
-        return $this->serializeDate($date);
-    }
-}