chore: add shaclc selector button to shacl12-core.html

Author: jeswr

shacl12-core/index.html

@@ -70,9 +70,14 @@
 				for (const tabs of document.querySelectorAll(".ds-selector-tabs")) {
 					const selectors = document.createElement("div");
 					selectors.classList.add("selectors");
+					
+					// Check if shaclc div exists in this tab group
+					const hasShaclc = tabs.querySelector(".shaclc");
+					
 					selectors.innerHTML = `
 						<button class="selected" data-selects="turtle">Turtle</button>
 						<button data-selects="jsonld">JSON-LD</button>
+						${hasShaclc ? '<button data-selects="shaclc">SHACL-C</button>' : ''}
 					`
 
 					tabs.prepend(selectors);