fix(settings): sync the view-mode toolbar button to the server value on load

viewMode is a synced setting. On launch localStorage is wiped (ephemeral port
= new origin) so state.viewMode defaults to 'cards' and applyViewMode()
highlights the cards button. loadServerSettings then set state.viewMode='table'
and re-rendered the content (table) but never re-synced the .view-btn
highlight or the column-picker — so table content showed under a cards-active
toolbar. Re-apply both in the visual-settings block, alongside theme/sidebar.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

js/app.js

@@ -6794,6 +6794,14 @@ async function loadServerSettings() {
         // Apply visual settings immediately.
         if (remote.theme) setTheme(remote.theme);
         if ('sidebarCollapsed' in remote) applySidebarCollapsed();
+        // viewMode's active-button highlight + column-picker visibility were
+        // set once at init from the (port-wiped) localStorage default 'cards';
+        // re-sync them to the server value so the toolbar matches the content.
+        if ('viewMode' in remote) {
+            $$('.view-btn').forEach(b =>
+                b.classList.toggle('is-active', b.dataset.view === state.viewMode));
+            applyColsWrapVisibility();
+        }
     } catch (e) {
         // Network/server hiccup is harmless — localStorage cache still works.
     }