Add a settings slice.

nr-app/src/redux/slices/settings.slice.ts

@@ -0,0 +1,26 @@
+import { createSlice } from "@reduxjs/toolkit";
+
+type SettingsState = {
+  areTestFeaturesEnabled: boolean;
+};
+
+const initialState: SettingsState = {
+  areTestFeaturesEnabled: false,
+};
+
+export const settingsSlice = createSlice({
+  name: "settings",
+  initialState,
+  reducers: {
+    toggleTestFeatures: (state, action) => {
+      state.areTestFeaturesEnabled = !state.areTestFeaturesEnabled;
+    },
+  },
+  selectors: {
+    selectAreTestFeaturesEnabled: (state) => state.areTestFeaturesEnabled,
+  },
+});
+
+export const settingsActions = settingsSlice.actions;
+
+export const settingsSelectors = settingsSlice.selectors;

nr-app/src/redux/store.ts

@@ -9,6 +9,7 @@ import { eventsSlice } from "./slices/events.slice";
 import { mapSlice } from "./slices/map.slice";
 import { relaysSlice } from "./slices/relays.slice";
 import { keystoreSlice } from "./slices/keystore.slice";
+import { settingsSlice } from "./slices/settings.slice";
 
 const isOnDevice = Platform.OS !== "web";
 
@@ -21,6 +22,7 @@ const reducer = combineSlices(
   keystoreSlice,
   mapSlice,
   relaysSlice,
+  settingsSlice,
 );
 
 export const store = configureStore({