SAK-50134 Portal theme property for auto detecting dark mode should m…

…atch documentation (sakaiproject#12886)

config/configuration/bundles/src/bundle/org/sakaiproject/config/bundle/default.sakai.properties

@@ -1,3 +1,4 @@
+
 ## sakai.properties - the default edition
 # This file is the default for providing all configuration and placeholder values for Sakai.
 ## Properties files load order: component-manager/kernel -> config/default -> sakai/sakai -> sakai/local -> sakai/security
@@ -876,8 +877,8 @@
 # portal.themes.switcher=false
 
 # Enable/disable the OS dark theme auto-detect mode
-# DEFAULT: false
-# portal.themes.autoDetectDark=true
+# DEFAULT: true
+# portal.themes.autoDetectDark=false
 
 # Display the help icon
 # DEFAULT: true