Fix initial budget loading and login/budget list sheet dismissal

Twigs/DataStore.swift

@@ -436,6 +436,7 @@ class DataStore : ObservableObject {
         do {
             let user = try await self.apiService.getUser(userId)
             self.currentUser = .success(user)
+            await getBudgets()
         } catch {
             self.currentUser = .error(error)
         }

Twigs/TabbedBudgetView.swift

@@ -73,26 +73,19 @@ struct TabbedBudgetView: View {
     
     var body: some View {
         mainView.sheet(isPresented: $dataStore.showLogin,
-                       onDismiss: {
-            Task {
-                await self.dataStore.getBudgets()
-            }
-        },
                        content: {
             LoginView()
                 .environmentObject(dataStore)
-                .onDisappear {
-                    Task {
-                        await self.dataStore.getBudgets()
-                    }
-                }
-        }).sheet(isPresented: $dataStore.showBudgetSelection,
+                .interactiveDismissDisabled(true)
+        })
+        
+        .sheet(isPresented: $dataStore.showBudgetSelection,
                  content: {
             List {
                 BudgetListsView().environmentObject(dataStore)
             }
-        })
             .interactiveDismissDisabled(true)
+        })
     }
 }