fix(web): open settings modal before populating it

openSettingsModal() populated every field and ran render helpers
(renderGroupVisibleList, renderAllAccounts, initAppPasswords) BEFORE the final
openModal() call, so an error in any of them left the modal unopened — the
"settings button does nothing" report. Now the modal opens first and the
populate step runs in try/catch (errors logged, not fatal). v76.

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

frontend/js/calendar.js

@@ -3097,6 +3097,17 @@ function renderGroupVisibleList(selectedId) {
 function openSettingsModal() {
   uiSettingsOpen = true;
   writeUrlState();
+  // Open the modal FIRST so a later error while populating a field (or in one of
+  // the render helpers below) can never prevent settings from opening at all.
+  openModal('modal-settings');
+  try {
+    populateSettings();
+  } catch (e) {
+    console.error('populateSettings failed', e);
+  }
+}
+
+function populateSettings() {
   const s = state.settings;
   document.getElementById('cfg-default-view').value  = s.default_view   || 'month';
   document.getElementById('cfg-week-start').value    = s.week_start_day || 'monday';
@@ -3184,8 +3195,6 @@ function openSettingsModal() {
 
   // Render unified calendar table
   renderAllAccounts();
-
-  openModal('modal-settings');
 }
 
 function activateSettingsPanel(panel) {