bugfix: removed "add line" behaviour from Docsy's click-to-copy

assets/js/click-to-copy.js

@@ -0,0 +1,46 @@
+let codeListings = document.querySelectorAll('.highlight > pre');
+
+for (let index = 0; index < codeListings.length; index++) {
+  const codeSample = codeListings[index].querySelector('code');
+  const copyButton = document.createElement('button');
+  const buttonAttributes = {
+    type: 'button',
+    title: 'Copy to clipboard',
+    'data-bs-toggle': 'tooltip',
+    'data-bs-placement': 'top',
+    'data-bs-container': 'body',
+  };
+
+  Object.keys(buttonAttributes).forEach((key) => {
+    copyButton.setAttribute(key, buttonAttributes[key]);
+  });
+
+  copyButton.classList.add(
+    'fas',
+    'fa-copy',
+    'btn',
+    'btn-sm',
+    'td-click-to-copy'
+  );
+  const tooltip = new bootstrap.Tooltip(copyButton);
+
+  copyButton.onclick = () => {
+    copyCode(codeSample);
+    copyButton.setAttribute('data-bs-original-title', 'Copied!');
+    tooltip.show();
+  };
+
+  copyButton.onmouseout = () => {
+    copyButton.setAttribute('data-bs-original-title', 'Copy to clipboard');
+    tooltip.hide();
+  };
+
+  const buttonDiv = document.createElement('div');
+  buttonDiv.classList.add('click-to-copy');
+  buttonDiv.append(copyButton);
+  codeListings[index].insertBefore(buttonDiv, codeSample);
+}
+
+const copyCode = (codeSample) => {
+  navigator.clipboard.writeText(codeSample.textContent.trim());
+};