✨ feat(i18n): display lcode in language switcher (#565)

themes/tabi/theme.toml

@@ -56,6 +56,9 @@ skin = ""
 # browser_theme_color = "#087e96"  # Example of single value.
 # browser_theme_color = ["#ffffff", "#000000"]  # Example of light/dark colours.
 
+# Show current language code on the language switcher
+show_selected_language_code_in_language_switcher = false
+
 # List additional stylesheets to load site-wide.
 # These stylesheets should be located in your site's `static` directory.
 # Example: stylesheets = ["extra1.css", "path/extra2.css"]