Add go back functionality

slices/navigation.js

@@ -4,12 +4,23 @@ const navigationSlice = createSlice({
   slice: 'navigation',
   initialState: {
     currentPage: 'Home',
+    history: [],
   },
   reducers: {
     navigate: (state, action) => {
+      const { history, currentPage } = state
       return {
+        history: history.concat(currentPage),
         currentPage: action.payload,
       }
+    },
+    goBack: (state) => {
+      const { history } = state
+      const lastIndex = history.length - 1
+      return {
+        currentPage: history[lastIndex],
+        history: history.slice(0, lastIndex),
+      }
     }
   }
 })
@@ -17,7 +28,7 @@ const navigationSlice = createSlice({
 // Extract the action creators object and the reducer
 const { actions, reducer, selectors } = navigationSlice
 // Extract and export each action creator by name
-export const { navigate } = actions
+export const { navigate, goBack } = actions
 
 export const { getNavigation } = selectors