refactor: patient frontend UI overhaul

- Reworked design system (variables, global styles, component CSS)
- Updated TabBar with icon-based navigation
- Redesigned HomePage, HealthHub, ServicesHub layouts
- Improved Exercise/Diet, Medication, Profile pages styling
- Simplified constants (removed emoji icons, streamlined data)
- Fixed launch.json cwd paths for frontend projects

frontend-patient/src/pages/medication/MedicationEditPage.module.css

@@ -6,7 +6,7 @@
 
 .sectionLabel {
   font-size: var(--font-size-sm);
-  font-weight: 500;
+  font-weight: 600;
   color: var(--color-text-secondary);
   display: block;
   margin-bottom: 8px;