docs: accessibility guidelines (#5033)

docs/content/en/contributing/guidelines/accessibiliy.md

@@ -0,0 +1,36 @@
+---
+title: "Accessibility"
+description: "Authelia Development Accessibility Guidelines"
+lead: "This section covers the accessibility guidelines we aim to respect during development."
+date: 2023-03-06T11:42:13+11:00
+draft: false
+images: []
+menu:
+  contributing:
+    parent: "guidelines"
+weight: 350
+toc: true
+---
+
+## Backend
+
+There are no specific guidelines for backend accessibility other than ensuring there are reasonable logging and this is
+extremely subjective.
+
+
+## Frontend
+
+### Translations
+
+We aim to ensure as much of the web frontend information displayed to users is translated by default. This allows for
+both automatic and manual translations by the community to be contributed to the code base. In addition it allows for
+admins to locally override these values.
+
+### Responsive Design
+
+We aim to make the web frontend responsive to multiple screen resolutions. There are a few guidelines which we aim to
+abide by:
+
+- The available space is utilized efficiently in order to avoid scrolling where possible.
+- The user only has to scroll in one direction to view available information. This direction should always be
+  vertically.

docs/content/en/contributing/guidelines/style.md

@@ -8,7 +8,7 @@ images: []
 menu:
   contributing:
     parent: "guidelines"
-weight: 320
+weight: 350
 toc: true
 aliases:
   - /docs/contributing/style-guide.html