Google Sheet - OAuth "client" powered integrations (#415)

* fix `helpers.php`

* fix `.eslintrc.cjs`

* spreadsheet manager

* fetch providers. set `oauth_id` for integrations

* create spreadsheet on integration create event

* connect OAuth accounts

* display actions. connect account if missing

* cleanup

* handle form field change

* map integration data object to `SpreadsheetData`

* validate request

* wip

* redirect to integrations page

* fix refresh token

* add helper text

* add extra integration info

* refactor

* refresh google token

* fix validation

* add tests

* Fix linting issue

* Update composer lock file

---------

Co-authored-by: Julien Nahum <julien@nahum.net>

app/Integrations/Handlers/WebhookIntegration.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Integrations\Handlers;
+
+class WebhookIntegration extends AbstractIntegrationHandler
+{
+    public static function getValidationRules(): array
+    {
+        return [
+            'webhook_url' => 'required|url'
+        ];
+    }
+
+    protected function getWebhookUrl(): ?string
+    {
+        return $this->integrationData->webhook_url;
+    }
+
+    protected function shouldRun(): bool
+    {
+        return !is_null($this->getWebhookUrl()) && parent::shouldRun();
+    }
+}