Collapse 'done' column by default in Kanban board

Changed the default collapsed column from 'review' to 'done' in both the HTML and JavaScript. This updates the initial UI state to have the 'done' column collapsed when the page loads.

Author: super3

index.html

@@ -385,7 +385,7 @@ <h4 class="font-medium text-gray-900 mb-1">Status</h4>
             </div>
 
             <!-- Done Column -->
-            <div class="flex-1 column-expanded" data-column="done">
+            <div class="flex-1 column-collapsed" data-column="done">
                 <div class="bg-white rounded-lg shadow-sm border border-gray-200">
                     <div class="px-4 py-3 border-b border-gray-200 column-header">
                         <div class="flex items-center justify-between">

src/kanban.js

@@ -372,8 +372,8 @@ document.addEventListener('DOMContentLoaded', function() {
         style.textContent = '.column-collapsed { transition: none !important; }';
         document.head.appendChild(style);
 
-        // Collapse the review column by default
-        collapseColumn('review');
+        // Collapse the done column by default
+        collapseColumn('done');
 
         // Re-enable transitions after a brief delay
         setTimeout(() => {