fix middleware to save countervalues

src/middlewares/db.js

@@ -7,17 +7,19 @@ import { settingsExportSelector } from 'reducers/settings'
 import CounterValues from 'helpers/countervalues'
 
 export default store => next => action => {
-  if (!action.type.startsWith('DB:')) {
-    return next(action)
+  if (action.type.startsWith('DB:')) {
+    const [, type] = action.type.split(':')
+    store.dispatch({ type, payload: action.payload })
+    const state = store.getState()
+    db.set('settings', settingsExportSelector(state))
+    db.set('accounts', getAccounts(state))
+  } else {
+    const oldState = store.getState()
+    const res = next(action)
+    const newState = store.getState()
+    if (oldState.countervalues !== newState.countervalues) {
+      db.set('countervalues', CounterValues.exportSelector(newState))
+    }
+    return res
   }
-
-  const { dispatch, getState } = store
-  const [, type] = action.type.split(':')
-
-  dispatch({ type, payload: action.payload })
-
-  const state = getState()
-  db.set('settings', settingsExportSelector(state))
-  db.set('accounts', getAccounts(state))
-  db.set('countervalues', CounterValues.exportSelector(state))
 }