OEL-1192: Fix whitelabel schema.

config/optional/oe_whitelabel.settings.yml → config/install/oe_whitelabel.settings.yml

@@ -7,5 +7,5 @@ logo:
   use_default: true
 favicon:
   use_default: true
-component_library: ec
-header_style: standard
+component_library: eu
+header_style: light

config/schema/oe_whitelabel.schema.yml

-# Schema for the configuration files of the OE Whitelabel theme.
-
 oe_whitelabel.settings:
   type: theme_settings
   label: 'OE Whitelabel settings'
+  mapping:
+    component_library:
+      type: string
+      label: 'BCL component library, either EC or EU'
+    header_style:
+      type: string
+      label: 'Header style, either Blue header or Light header'