store createdAt in localStorage.account

[gr2m]

followup for hoodiehq/hoodie#282

pass created at to the sign up request, so the server can store createdAt and a separate signedUpAt timestamp. Related server issue: hoodiehq/hoodie-account-server#154

[thomasjinlo]

me!

[gr2m]

@thomasjinlo I’ve seen the other day that we don’t actually store createdAt in localstorage yet. You can see it when you open https://tracker.hood.ie/ and then check the value of localStorage.account, it’s something like "{"id":"iqfmlp8"}", but besides the "id" there should also be the "createdAt" timestamp. I thought we had that already but maybe it got lost somewhere? Do you want to look into that first?

[gr2m]

@thomasjinlo are you still looking into this one?