Marka güncellemeleri: hMarket ismi, turuncu logo ve PWA yapılandırması

frontend/src/components/Layout/Navbar.tsx

@@ -88,7 +88,7 @@ const Navbar: React.FC = () => {
       <Box sx={{ p: 2, display: 'flex', alignItems: 'center' }}>
         <ShoppingCart sx={{ mr: 1, color: 'primary.main' }} />
         <Typography variant="h6" color="primary.main" fontWeight="bold">
-          HMarket
+          hMarket
         </Typography>
       </Box>
       <Divider />
@@ -139,7 +139,7 @@ const Navbar: React.FC = () => {
           <Box sx={{ display: 'flex', alignItems: 'center', flexGrow: 1 }}>
             <ShoppingCart sx={{ mr: 1 }} />
             <Typography variant="h6" component="div" fontWeight="bold">
-              HMarket
+              hMarket
             </Typography>
           </Box>
           <Box sx={{ display: 'flex', gap: 1 }}>
@@ -188,7 +188,7 @@ const Navbar: React.FC = () => {
               sx={{ cursor: 'pointer' }}
               onClick={() => navigate('/dashboard')}
             >
-              HMarket
+              hMarket
             </Typography>
           </Box>