fix: show schedule panel before sources in theme settings

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/pages/ThemeManager.tsx

@@ -204,12 +204,12 @@ const ThemeManager: Component = () => {
                 onSaved={handleThemeSaved}
               />
 
-              {/* ── Sources card ── */}
-              <ThemeSourceList themeId={theme().id} />
-
               {/* ── Schedule card ── */}
               <SettingsSchedule themeId={selectedThemeId()!} />
 
+              {/* ── Sources card ── */}
+              <ThemeSourceList themeId={theme().id} />
+
               {/* ── Delete theme ── */}
               <div class="mt-8">
                 <Button