feat: remember layout

public/app.js

@@ -20,7 +20,7 @@ const layoutDropdown = document.getElementById('layoutDropdown');
 let allLinks = [];
 let searchTimeout = null;
 let showArchived = false;
-let currentLayout = 'masonry'; // Default layout
+let currentLayout = localStorage.getItem('linkdingLayout') || 'masonry'; // Load from localStorage or default
 
 // Initialize app
 document.addEventListener('DOMContentLoaded', () => {
@@ -150,6 +150,9 @@ function applyLayout(layout) {
     linksContainer.className = 'links-container';
     linksContainer.classList.add(`layout-${layout}`);
     
+    // Save to localStorage
+    localStorage.setItem('linkdingLayout', layout);
+    
     // Update active state in dropdown
     layoutDropdown.querySelectorAll('.layout-option').forEach(option => {
         option.classList.toggle('active', option.dataset.layout === layout);