fix: add pharmacy map to ProductView and fix pharmacies endpoint

- Added PharmacyMap component to ProductView
- Updated backend to accept all valid sources for pharmacies endpoint
- Shows map with pharmacy locations and list of pharmacies with prices

apps/frontend/src/views/ProductView.jsx

@@ -1,4 +1,5 @@
 import React, { useState, useEffect } from 'react';
+import PharmacyMap from '../components/PharmacyMap';
 import './ProductView.css';
 
 export default function ProductView({ source, id, onBack }) {
@@ -150,6 +151,9 @@ export default function ProductView({ source, id, onBack }) {
             <h3 className="pharmacies-title">
               Disponible en {pharmacies.length} {pharmacies.length === 1 ? 'farmacia' : 'farmacias'}
             </h3>
+
+            <PharmacyMap pharmacies={pharmacies} />
+
             <div className="pharmacies-grid">
               {pharmacies.map((pharmacy) => (
                 <div key={pharmacy.id} className="product-pharmacy-card">