[plugin] Auto issue orders (#9565)

* Add builtin plugin for auto-issuing orders

* Add plugin to auto-issue orders

* Add placeholder documentation

* Fix typo

* Adds image macro

- To replace img.html
- includes checking if file exists

* Fix tooltips

* More docs

* Adjust plugin settings filters

* docs

* More docs

* More docs

* Updates

* Less restrictive URL checking

* Refactor build order page

* Fix typo

* Allow 429

* Debug output

* More debug

* Construct assets dir

* Cleanup

* Update docs README

* Refactoring more pages

* Fix image link

* Fix SSO settings

* Add hook to check for missing settings

- Ensure that all settings are documented!

* Add missing user settings

* Update docstring

* Tweak SSO.md

* Image updates

* More updates

* Tweaks

* Exclude orders without a target_date

* Fix for issuing build orders

* Further refactoring

* Fixes

* Image refactoring

* More refactoring

* More refactoring

* Refactor app images

* Fix pathing issues

* Suppress some openapidocs warnings in logs

(much easier to debug docs build issues)

* Fix image reference

* Reduce error messages

* Fix image links

* Fix image links

* Reduce docs log output

* Ensure settings are loaded before displaying them

* Fix for UI test

* Fix unit test

* Test tweaks

docs/_includes/app_img.html

@@ -1,5 +0,0 @@
-{% set url = 'app/' + url %}
-
-{% with id=id, url=url, maxheight="240px", description="" %}
-{% include "img.html" %}
-{% endwith %}

docs/_includes/img.html

@@ -1,30 +0,0 @@
-{% if 'http' in url %}
-{% set img_url = url %}
-{% else %}
-{% set img_url = config.assets_dir + '/images/' + url %}
-{% endif %}
-
-<figure class='image image-inventree'>
-    {% if id %}
-    <!-- The link that, when clicked, will display the image in full screen -->
-    <a href="#{{ id }}">
-    {% elif img_url %}
-    <a href="{{ img_url }}">
-    {% endif %}
-        <img class='img-inline' src='{{ img_url }}' alt='{{ description }}' title='{{ description }}'
-        {% if maxwidth or maxheight %}style='
-        {% if maxwidth %} max-width:{{ maxwidth }};{% endif %}
-        {% if maxheight %} max-height: {{ maxheight }};{% endif %}
-        '{% endif %}
-        >
-    {% if id or img_url %}
-    </a>
-    {% endif %}
-
-    {% if id %}
-    <!-- The full screen image, hidden by default  -->
-    <a href="#_" class="overlay" id="{{ id }}">
-      <img src="{{ img_url }}" alt="{{ description }}" />
-    </a>
-    {% endif %}
-</figure>