fix(site): more reliable tabs (#153)

site/src/utils/rehypePrepareCodeBlocks.js

@@ -2,13 +2,10 @@
  * Adapted from https://mdxjs.com/guides/syntax-highlighting/
  *
  * This plugin:
- * 1. Generates stable IDs for <pre> blocks (for tabs)
- * 2. Tags <code> children of <pre> blocks so they know they're in a pre block
- * 3. Marks <pre> blocks with hasFrame based on whether they're inside a <TabsPanel> JSX component
+ * 1. Tags <code> children of <pre> blocks so they know they're in a pre block
+ * 2. Marks <pre> blocks with hasFrame based on whether they're inside a <TabsPanel> JSX component
  */
 
-let preBlockCounter = 0;
-
 export default function rehypePrepareCodeBlocks() {
   return (tree) => {
     // Process the tree with a stateful visitor
@@ -31,9 +28,6 @@ export default function rehypePrepareCodeBlocks() {
         // Mark whether this pre block is inside tabs
         node.properties.hasFrame = context.hasFrame;
 
-        // Generate stable ID for this pre block
-        node.properties['data-tabs-id'] = `pre-${preBlockCounter++}`;
-
         // Tag <code> children
         node.children.forEach((child) => {
           if (child.tagName === 'code') {