I really like having my inventory entirely one bag. But in the settings I was looking for an option to make the bank look like the base game. I disabled the bank frame in the addon settings, this made the bank look like normal but once you start opening the extra bag slots in the bank the inventory starts to look like the 2nd attached image.

Now there is a work around but I thought I should bring this to your attention. The work around is to close your inventory after the bank is open, then open the extra slots, after that, then open the personal inventory.

You could also try COmbuctor if you want the default inventory look.