Zapier integration (#491)

* create zapier app

* install sanctum

* move OAuthProviderController

* make `api-external` middleware

* add zapier endpoints

* add tests

* token management

* zapier event handler

* add policy

* use `slug` instead of `id`

* wip

* check policies

* change api prefix to `external`

* ui tweaks

* validate token abilities

* open zapier URL

* zapier ui tweaks

* update zap

* Fix linting

* Added sample endpoints + minor UI changes

* Run PHP code linter

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

client/data/forms/integrations.json

@@ -31,17 +31,19 @@
   "webhook": {
     "name": "Webhook Notification",
     "icon": "material-symbols:webhook",
-    "section_name": "Notifications",
+    "section_name": "Automation",
     "file_name": "WebhookIntegration",
     "is_pro": false
   },
   "zapier": {
-    "name": "Zapier Integration",
+    "name": "Zapier",
     "icon": "cib:zapier",
-    "section_name": "Notifications",
+    "section_name": "Automation",
     "file_name": "ZapierIntegration",
-    "is_pro": true,
-    "coming_soon": true
+    "is_pro": false,
+    "is_external": true,
+    "is_editable": false,
+    "url": "https://zapier.com/app/zaps"
   },
   "google_sheets": {
     "name": "Google Sheets",