TrimSuffix usage causes issues when run from Windows

In main.go the usages of `strings.TrimSuffix(thing, "\n")` cause an issue when the application is run on Windows.

This strips the `\n` but leaves the `\r`.

Changing these to `strings.TrimRight(thing, "\r\n")`, and checking for `if thing != "\n" && thing != "\r\n" { }` in the update functionality appears to fix the issue on Windows, and it still runs as expected on macOS.