fix: change initial status on loading flowManagerStore to prevent inf…

…inity loading (langflow-ai#2804)

🐛 (flowsManagerStore.ts): fix isLoading initial value to false to correctly reflect loading state

src/frontend/src/stores/flowsManagerStore.ts

@@ -79,7 +79,7 @@ const useFlowsManagerStore = create<FlowsManagerStoreType>((set, get) => ({
   currentFlow: undefined,
   saveLoading: false,
   setSaveLoading: (saveLoading: boolean) => set({ saveLoading }),
-  isLoading: true,
+  isLoading: false,
   setIsLoading: (isLoading: boolean) => set({ isLoading }),
   refreshFlows: () => {
     return new Promise<void>((resolve, reject) => {