Subject bar under the header in Quizzes and Lessons, synced between tabs; bidi fix for Latin math in RTL text

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/screens/ProfileScreen.tsx

@@ -256,7 +256,7 @@ function GradeSheet({ open, onClose }: { open: boolean; onClose: () => void }) {
       await api.profile.setGrade(gradeId);
       setProfile({ ...profile, gradeId });
       askStore.reset(null);
-      await Promise.all([refreshHome(), refreshSummary()]);
+      await Promise.all([refreshHome(gradeId), refreshSummary()]);
       toast('پایه‌ت عوض شد', 'success');
       onClose();
     } catch (err) {