Feat: Update CAPTCHA service to ALTCHA self-hosted.

templates/layouts/layout.html

@@ -132,6 +132,7 @@
         var flagTemporaryElement = "{{ model.FLAG_TEMPORARY_ELEMENT }}";
         var flagUser = "{{ model.FLAG_USER }}";
         var flagWebsite = "{{ model.FLAG_WEBSITE }}";
+        var hashALTCHACreateChallenge = "{{ model.HASH_ALTCHA_CREATE_CHALLENGE }}";
         var hashApplyFiltersStoreProductPermutation = "{{ model.HASH_APPLY_FILTERS_STORE_PRODUCT_PERMUTATION }}";
         var hashPageAccessibilityReport = "{{ model.HASH_PAGE_ACCESSIBILITY_REPORT }}";
         var hashPageAccessibilityStatement = "{{ model.HASH_PAGE_ACCESSIBILITY_STATEMENT }}";