data: profile: extend workstation profile to hide pages for Web UI

This was previously handled within the Web UI codebase. Now we hide
pages specified by the `hidden_pages` configuration option.

data/anaconda.conf

@@ -284,10 +284,14 @@ reformat_blocklist = /home /usr/local /opt /var/www
 # The path to a custom stylesheet.
 custom_stylesheet =
 
-# A list of spokes to hide in UI.
+# A list of spokes to hide in GTK UI.
 # FIXME: Use other identification then names of the spokes.
 hidden_spokes =
 
+# A list of spokes to hide in Web UI.
+# Use the ID attribute of the Page class.
+hidden_webui_pages =
+
 # Should the UI allow to change the configured root account?
 can_change_root = False
 

data/profile.d/fedora-workstation.conf

@@ -22,6 +22,9 @@ hidden_spokes =
     NetworkSpoke
     PasswordSpoke
     UserSpoke
+hidden_webui_pages =
+    accounts
+    language
 
 [Localization]
 # disable localization for the Fedora Workstation live image to avoid