fix: feed detail and map improved back navigation

src/app/screens/Feed/FeedView.tsx

@@ -168,7 +168,7 @@ export default async function FeedView({
               feedId={feed.id ?? ''}
             />
 
-            <Box sx={{ mt: 2 }}>
+            <Box sx={{ mt: 1 }}>
               <FeedTitle sortedProviders={sortedProviders} feed={feed} />
             </Box>
 

src/app/screens/Feed/components/FeedNavigationControls.tsx

@@ -17,20 +17,21 @@ export default function FeedNavigationControls({
   const t = useTranslations('common');
   const router = useRouter();
 
+  const handleBack = (): void => {
+    if (window.history.length > 1) {
+      router.back();
+      return;
+    }
+    router.push('/feeds');
+  };
+
   return (
-    <Grid container spacing={3} alignItems='flex-end'>
+    <Grid container spacing={3} alignItems='center'>
       <Button
-        sx={{ py: 0 }}
         size='large'
         startIcon={<ChevronLeft />}
         color={'inherit'}
-        onClick={() => {
-          if (window.history.length > 1) {
-            router.back();
-          } else {
-            router.push('/feeds');
-          }
-        }}
+        onClick={handleBack}
       >
         {t('back')}
       </Button>

src/app/screens/Feed/components/FullMapView.tsx

@@ -119,6 +119,20 @@ export default function FullMapView({
   const isGtfsFeed = feed?.data_type === 'gtfs';
   const hasError = !isGtfsFeed || feed == null || boundingBox == null;
 
+  const handleExitMap = (): void => {
+    if (window.history.length > 1) {
+      router.back();
+      return;
+    }
+
+    if (feedId != null) {
+      router.replace(`/feeds/${feed?.data_type ?? 'gtfs'}/${feedId}`);
+      return;
+    }
+
+    router.replace('/feeds');
+  };
+
   const errorDetails = useMemo(() => {
     const messages: string[] = [];
     if (feed == null) {
@@ -251,13 +265,7 @@ export default function FullMapView({
               startIcon={<ChevronLeft />}
               color={'inherit'}
               sx={{ pl: 0, display: { xs: 'none', md: 'inline-flex' } }}
-              onClick={() => {
-                if (!hasError && feedId != null) {
-                  router.push(`/feeds/gtfs/${feedId}`);
-                } else {
-                  router.push('/');
-                }
-              }}
+              onClick={handleExitMap}
             >
               {tCommon('back')}
             </Button>
@@ -387,13 +395,7 @@ export default function FullMapView({
               size='small'
               aria-label={t('fullMapView.aria.close')}
               sx={{ position: 'absolute', top: 10, right: 10, zIndex: 1000 }}
-              onClick={() => {
-                if (!hasError && feedId != null) {
-                  router.push(`/feeds/${feed?.data_type}/${feedId}`);
-                } else {
-                  router.push('/');
-                }
-              }}
+              onClick={handleExitMap}
             >
               <CloseIcon />
             </Fab>