revert change to load last account and bump local storage key version

store/mangoStore.ts

@@ -627,7 +627,7 @@ const mangoStore = create<MangoStore>()(
               if (typeof lastAccount === 'string') {
                 try {
                   lastViewedAccount = mangoAccounts.find(
-                    (m) => m.publicKey.toString() === lastAccount
+                    (m) => m.publicKey.toString() === JSON.parse(lastAccount)
                   )
                 } catch (e) {
                   console.error('Error parsing last account', e)

utils/constants.ts

@@ -1,4 +1,4 @@
-export const LAST_ACCOUNT_KEY = 'mangoAccount-0.3'
+export const LAST_ACCOUNT_KEY = 'mangoAccount-0.4'
 
 export const CLIENT_TX_TIMEOUT = 90000