Fix capitalization of checkbox in Input Map Editor

editor/project_settings_editor.cpp

@@ -649,7 +649,7 @@ ProjectSettingsEditor::ProjectSettingsEditor(EditorData *p_data) {
 	action_map->connect("action_removed", callable_mp(this, &ProjectSettingsEditor::_action_removed));
 	action_map->connect("action_renamed", callable_mp(this, &ProjectSettingsEditor::_action_renamed));
 	action_map->connect("action_reordered", callable_mp(this, &ProjectSettingsEditor::_action_reordered));
-	action_map->set_toggle_editable_label(TTR("Show built-in Actions"));
+	action_map->set_toggle_editable_label(TTR("Show Built-in Actions"));
 	action_map->set_show_uneditable(false);
 	tab_container->add_child(action_map);