Fix error occurring when navigating back from settings section

slices/navigation.js

@@ -1,5 +1,5 @@
 import { createSlice } from 'redux-starter-kit'
-import { pages, isSymptomView } from '../components/pages'
+import { pages } from '../components/pages'
 
 const navigationSlice = createSlice({
   slice: 'navigation',
@@ -14,22 +14,19 @@ const navigationSlice = createSlice({
       }
     },
     goBack: ({ currentPage, previousPage }) => {
-
-      if (currentPage === 'CycleDay' || isSymptomView(currentPage)) {
-        if (previousPage) {
-          return {
-            currentPage: previousPage
-          }
+      if (currentPage === 'CycleDay' && !!previousPage) {
+        return {
+          currentPage: previousPage,
         }
       }
 
-      const page = pages.find(p => p.component === currentPage)
+      const page = pages.find((p) => p.component === currentPage)
       return {
         currentPage: page.parent,
         previousPage: currentPage,
       }
-    }
-  }
+    },
+  },
 })
 
 // Extract the action creators object and the reducer