* rewrite to cookie based auth * remove interceptor
* fix session clearing on error * use singleton context to manage user state * implement remember-me functionality * fix errors * fix more errors
* frontend cookie implementation * accept cookies for authentication * remove auth store * add self attr
* initial UI for currency selection * add task to purge invitation tokens * group API contracts * fix type import * use auth middleware * add currency setting support (UI) * use group settings for format currency * fix casing