Log in screen can be accessed while logged in

[timovv]

Describe the bug
While logged in, if I try and go to the login screen (at /), the screen is presented so that I can log in as someone else. If I log in as someone else, I am logged out
To Reproduce
Steps to reproduce behaviour:

1. Log in to application
2. Return to / path by changing browser URL
3. Observe that login screen is available, even though I should in theory be logged in.

Severity
Mark with an x.

• Minor effect eg. graphical
• Functional error eg. App does not function correctly
• Severe eg. Crashing

Reproducibility
Mark with an x.

• Consistent
• Occasional
• Cannot reproduce at the moment eg. unsure

Expected behavior
I cannot access the login screen while logged in, and must log in to do this.

I suggest that we solve this issue by removing the /home part of the route for the logged in part of the application and serving everything there directly from / (i.e. also /transactions instead of /home/transactions and so on) and while the user is logged in. This would mean that the log in screen is not accessible, and the routing would look cleaner.

Screenshots, Images and Traces
Not applicable

Conditions
Tested on Windows with Chromium-based Edge but this should be reproducible on any browser.

Issue Dependencies
Related to #141.

Also, this shouldn't be fixed unless #142 is addressed. Otherwise, the user would not be able to log in as anybody else once logged in, since they can't currently actually sign out.

Additional context
Not applicable