Android Beta 1.53

We’ve oiled a few squeaky cogs and fixed some of the problems you were coming across, including— 

• We won’t let you delete a file while it’s being uploaded 
• That strange occurrence when we asked you to pick between the same two email addresses? Yeah, that’s gone. We will also reduce the number of times we ask you to log in again. 
• We’re embracing the dark side in our widget and will no longer let the light in—light themes and dark themes will no longer mix. 
• If you have set up multiple accounts, then we now make sure that we always keep to the current user when you open the app again.  
• We’ve made a whole host of small accessibility fixes