CSS class migrations: stat-card cursor, view toggle, bulk actions visibility

- Replace stat-card cursor:pointer inline style with CSS rule
- Convert view toggle (table/card) to use .is-hidden CSS class
- Convert bulk-actions and export-dropdown to use .is-visible class
- Add .is-hidden/.is-visible utility rules to dashboard.css
- Remove duplicate lt.keys.initDefaults() call from dashboard.js
- Remove redundant setTimeout from view mode restore
- Add lt.keys.initDefaults() to dashboard.js (was missing entirely)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

assets/js/dashboard.js

@@ -683,22 +683,14 @@ function updateSelectionCount() {
     const exportCount = document.getElementById('exportCount');
 
     if (toolbar && countDisplay) {
-        if (count > 0) {
-            toolbar.style.display = 'flex';
-            countDisplay.textContent = count;
-        } else {
-            toolbar.style.display = 'none';
-        }
+        toolbar.classList.toggle('is-visible', count > 0);
+        if (count > 0) countDisplay.textContent = count;
     }
 
     // Show/hide export dropdown based on selection
     if (exportDropdown) {
-        if (count > 0) {
-            exportDropdown.style.display = '';
-            if (exportCount) exportCount.textContent = count;
-        } else {
-            exportDropdown.style.display = 'none';
-        }
+        exportDropdown.classList.toggle('is-visible', count > 0);
+        if (count > 0 && exportCount) exportCount.textContent = count;
     }
 }
 
@@ -1359,14 +1351,14 @@ function setViewMode(mode) {
     if (!tableView || !cardView) return;
 
     if (mode === 'card') {
-        tableView.style.display = 'none';
-        cardView.style.display = 'block';
+        tableView.classList.add('is-hidden');
+        cardView.classList.remove('is-hidden');
         tableBtn.classList.remove('active');
         cardBtn.classList.add('active');
         populateKanbanCards();
     } else {
-        tableView.style.display = 'block';
-        cardView.style.display = 'none';
+        tableView.classList.remove('is-hidden');
+        cardView.classList.add('is-hidden');
         tableBtn.classList.add('active');
         cardBtn.classList.remove('active');
     }
@@ -1444,8 +1436,7 @@ function populateKanbanCards() {
 document.addEventListener('DOMContentLoaded', function() {
     const savedMode = localStorage.getItem('ticketViewMode');
     if (savedMode === 'card') {
-        // Delay to ensure DOM is ready
-        setTimeout(() => setViewMode('card'), 100);
+        setViewMode('card');
     }
 });
 
@@ -1755,6 +1746,7 @@ function initRelativeTimes() {
 document.addEventListener('DOMContentLoaded', initRelativeTimes);
 setInterval(initRelativeTimes, 60000);
 
+
 // Export for use in other scripts
 window.generateSkeletonRows = generateSkeletonRows;
 window.generateSkeletonComments = generateSkeletonComments;