bug: edge case for uoa login

[MrSpy42]

The my-studies app escapes backslash characters with another backslash effectively adding an extra character to a password that contains the backslash. Since unistudents doesn't do that, it fails the login with a wrong password error even though it is the correct one. Problem was fixed by manually adding an extra backslash to the unistudents password field. eg "examplepass123\" had to be changed to "examplepass123\\"