Feat(Gotenberg): Opt-in alternative pdf generation for modern CSS (#184)

* WIP(gotenberg): add pdf generation abstraction and UI

* feat(pdf): settings validate(clien+server) & save

* fix(gotenberg): Use correct default papersize
chore(gotengberg): Remove unused GOTENBERG_MARGINS env from .env

* style(gotenberg): fix linter/styling issues

* fix(pdf): use pdf config policy

* fix: revert accidental capitalization in mail config vue

* Update composer, remove whitespace typo

* Fix small typos

* fix cookie/env issue

* Add gotenberg to .dev, move admin menu item up

resources/scripts/admin/admin-router.js

@@ -56,6 +56,8 @@ const UpdateApp = () =>
   import('@/scripts/admin/views/settings/UpdateAppSetting.vue')
 const RolesSettings = () =>
   import('@/scripts/admin/views/settings/RolesSettings.vue')
+const PDFGenerationSettings = () =>
+  import('@/scripts/admin/views/settings/PDFGenerationSetting.vue')
 
 // Items
 const ItemsIndex = () => import('@/scripts/admin/views/items/Index.vue')
@@ -327,6 +329,12 @@ export default [
             meta: { isOwner: true },
             component: UpdateApp,
           },
+          {
+            path: 'pdf-generation',
+            name: 'pdf.generation',
+            meta: { isOwner: true },
+            component: PDFGenerationSettings,
+          },
         ],
       },