message: Make the error name more descriptive (lib)
diff: #define kInvalidDateError "Date year must be between 2006 and 2030"
  #define kStartNotBeforeStopError "Stop time must be after start time"
  #define kMaximumDescriptionLengthError "Maximum length for description (3000 chars) exceeded"
  -#define kForeignEntityLost "Assigned foreign entity could not be found"
  +#define kForeignEntityLostError "Assigned foreign entity could not be found"
  #define kCheckYourSignupError "Signup failed - please check your details. The e-mail might be already taken." // NOLINT
  #define kEndpointGoneError "The API endpoint used by this app is gone. Please contact Toggl support!" // NOLINT
  