Use modern configuration for django-markdownify (#3286)

- Required to suppress some configuration warning messages

InvenTree/InvenTree/settings.py

@@ -875,7 +875,15 @@ REMOTE_LOGIN_HEADER = get_setting('INVENTREE_REMOTE_LOGIN_HEADER', CONFIG.get('r
 # Markdownify configuration
 # Ref: https://django-markdownify.readthedocs.io/en/latest/settings.html
 
-MARKDOWNIFY_WHITELIST_TAGS = [
+MARKDOWNIFY = {
+    'default': {
+        'BLEACH': True,
+        'WHITELIST_ATTRS': [
+            'href',
+            'src',
+            'alt',
+        ],
+        'WHITELIST_TAGS': [
             'a',
             'abbr',
             'b',
@@ -889,15 +897,9 @@ MARKDOWNIFY_WHITELIST_TAGS = [
             'p',
             'strong',
             'ul'
-]
+        ],
-
+    }
-MARKDOWNIFY_WHITELIST_ATTRS = [
+}
-    'href',
-    'src',
-    'alt',
-]
-
-MARKDOWNIFY_BLEACH = False
 
 # Error reporting
 SENTRY_ENABLED = get_setting('INVENTREE_SENTRY_ENABLED', CONFIG.get('sentry_enabled', False))