add documentation about smtp config

add some routes to ensure has team whitelist

Implement New Team-Based User Model (deck9#127)

* activate teams and invitations

* add missing team policy

* add link to team settings

* change forms to use team_id

* fix initial team creation and add logout to missing team page

* change naming

* wip make dedicated create team page after signup

* fix team creation

* isntall telescope

* change message for team creation page

* fix tests

* remove underscores from test

* update policies

* add tests to preview form

* fix migrations for sqlite

* change default team name

change http client used for webhook and prevent SSRF

Add mailable notification for form submissions (deck9#114)

* add mailable for form submissoins

* hide data retention field if deletion is disabled

set upload limit in nginx and php.ini

Improve first user sign up screen (deck9#102)

* remove invalid impots

* fix first test for redirect to register page

* improve middleware

* update register page

* show first setup state

* fix middleware and tests

* better style for onboard welcome message

Add a secret input field (deck9#101)

* update ui package

* add secret field to workbench

* add secret field to classic form

fix wrong root for default nginx location (closes deck9#97)

remove old listen config in nginx.conf (closes deck9#96)