Reset loading and scroll state in fetchData catch blocks to prevent stuck UI

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/Discover/Map/Filter/TraceFilter.vue

@@ -456,6 +456,8 @@ async function fetchData() {
     isLoading.value = false;
   } catch (error) {
     console.error("Failed to load data:", error);
+    infiniteFinish.value = true;
+    isLoading.value = false;
   }
 }
 

src/components/Discover/Map/SidebarTraces.vue

@@ -353,6 +353,8 @@ async function fetchData() {
     isLoading.value = false;
   } catch (error) {
     console.error("Failed to load data:", error);
+    infiniteFinish.value = true;
+    isLoading.value = false;
   }
 }