refactor: renamed API dirs

app/ui/HomePage.tsx

@@ -10,13 +10,13 @@ export interface HomePageProps {
 }
 
 const fetchAllLocations = async (year: number) => {
-  const response = await fetch(`/api/all-locations/?year=${year}`);
+  const response = await fetch(`/api/locations/in-year/?year=${year}`);
   const { locations } : { locations: WithId<BillingLocation>[] } = await response.json();
   return locations;
 }
 
 const fetchAvailableYears = async () => {
-  const response = await fetch(`/api/available-years/`);
+  const response = await fetch(`/api/locations/available-years/`);
   const { availableYears }: { availableYears: number[]} = await response.json();
   return availableYears;
 }