style: simplify copy button labels

Co-authored-by: jamesmontemagno <1676321+jamesmontemagno@users.noreply.github.com>
Agent-Logs-Url: https://github.com/copilot-dev-days/agent-lab-typescript/sessions/87511d3c-3e87-471f-8f89-7d0234d57e7d

Author: Copilot

docs/step.css

@@ -172,7 +172,7 @@
         .markdown .code-copy-btn {
             position: absolute; top: 0.75rem; right: 0.75rem;
             display: inline-flex; align-items: center; justify-content: center;
-            min-width: 5.5rem; padding: 0.4rem 0.75rem;
+            min-width: max-content; padding: 0.4rem 0.75rem;
             border: 1px solid var(--border-color); border-radius: 999px;
             background: var(--bg-overlay); color: var(--text-secondary);
             font: inherit; font-size: 0.8rem; cursor: pointer; transition: all 0.2s ease;

docs/step.html

@@ -223,7 +223,7 @@
             if (!container) return;
             const codeBlocks = container.querySelectorAll('pre');
 
-            codeBlocks.forEach((pre, index) => {
+            codeBlocks.forEach((pre) => {
                 const code = pre.querySelector('code');
                 const codeText = code?.textContent?.trim();
                 if (!codeText) return;
@@ -232,7 +232,7 @@
                 copyButton.type = 'button';
                 copyButton.className = 'code-copy-btn';
                 copyButton.textContent = 'Copy';
-                copyButton.setAttribute('aria-label', `Copy code block ${index + 1}`);
+                copyButton.setAttribute('aria-label', 'Copy code');
 
                 const liveRegion = document.createElement('span');
                 liveRegion.className = 'sr-only';