seperation of component, global and server state

doc/decisions/frontend_state_management.md

@@ -18,6 +18,8 @@ Inside a React application we can usually distinguish between three types of sta
 
 ## Considered Alternatives
 
+### Global Application State
+
 - [Redux](https://redux.js.org/)
   Requires more complex setup, boilerplate and has a steeper learning curve than Zustand.
 - [React context](https://reactjs.org/docs/context.html)
@@ -27,23 +29,48 @@ Inside a React application we can usually distinguish between three types of sta
 - [Recoil](https://recoiljs.org/)
   Recoil is still in experimental state, not yet recommended for production (16.03.2023).
 
+### Server State
+
+- [SWR](https://github.com/vercel/swr)
+  Fewer features than React Query 
+
 ## Decision
 
-[Zustand](https://github.com/pmndrs/zustand) will be used as the state management library for PermaplanT.
+### Local Component State
+
+  No library is needed. 
+
+#### Rationale
+
+  Managing component state can be accomplished with React features (useState, Context + useReducer).
 
-## Rationale
+### Global Application State
+
+  [Zustand](https://github.com/pmndrs/zustand) will be used as the global state management library for PermaplanT.
+
+#### Rationale
 
 Zustand is a lightweight and easy-to-use library that uses hooks, which makes it easy to integrate with React. 
 Its simplicity also reduces the amount of boilerplate code and the need for complex setup and configuration.
 
+### Server State
+
+  [React Query](https://react-query-v3.tanstack.com/) will be used for managing asynchronous state
+
+#### Rationale
+
+  React Query is a feature rich, up to date library for managing asynchronous data. 
+
 ## Implications
 
 ## Related Decisions
+
  - Choosing React as the [frontend library](./frontend_ui_framework.md) for PermaplanT
 
 ## Notes
 
 ## Links
 https://medium.com/readytowork-org/its-zustand-vs-redux-8e24424df713
 https://tanstack.com/query/latest/docs/react/guides/does-this-replace-client-state
+https://tanstack.com/query/v4/docs/react/comparison