fix(settings): prevent refresh cycle from reverting unsaved toggle changes

Track a _settingsDirty flag that is set whenever the user interacts with
a settings toggle or number input. updateSettingsUI() skips the sync while
dirty so the 2-second refresh cycle cannot revert in-progress edits.
The flag is cleared after a successful save or reset.

extension/dashboard/events.js

@@ -29,9 +29,17 @@ function setupEvents() {
         document.documentElement.setAttribute('data-theme', isLight ? 'light' : 'dark');
         localStorage.setItem('holesail-theme', isLight ? 'light' : 'dark');
       }
+      // Mark settings dirty for any toggle inside the settings page so the
+      // refresh cycle doesn't revert the change before the user hits Save
+      if (toggle.closest('#page-settings')) _markSettingsDirty();
     });
   });
 
+  // Mark settings dirty when any number input inside the settings page changes
+  document.querySelectorAll('#page-settings input[type="number"]').forEach(input => {
+    input.addEventListener('input', _markSettingsDirty);
+  });
+
   // Save settings
   $('btnSaveSettings')?.addEventListener('click', saveSettings);
 
@@ -42,6 +50,7 @@ function setupEvents() {
       { target: 'holesail-native', action: 'send', payload: { type: 'updateSettings', payload: { ...settings } } },
       (response) => {
         if (response && response.settings) settings = { ...SETTINGS_DEFAULTS, ...response.settings };
+        _clearSettingsDirty();
         updateSettingsUI();
         showToast('Settings reset to defaults', 'success');
       }