refactor(theme): enhance link resolution logic for archives, categories, and tags

templates/category.html

@@ -10,7 +10,8 @@
           <span th:text="${category.spec.displayName} + '.md'">category.md</span>
           <a
             class="devcm-editor-tab__close"
-            href="/categories"
+            href="#"
+            th:href="${!#strings.isEmpty(site.routes.categoriesUri) ? site.routes.categoriesUri : '/categories'}"
             th:aria-label="#{devcm.action.closeCategoryTab}"
             th:title="#{devcm.action.closeCategoryTab}"
             >×</a