Fails to detect newer versions of Arduino IDE

[JamesCaska]

Versions 1.8.10 and higher will not be detected due to the substring calculation being fixed to 1 decimal place. So 1.8.10 becomes 1.8.1

    public Optional<Version> findCurrentVersion() {
        return findHighestArduinoVersionLine().map( 
            line -> new Version( line.split("=")[0].substring(9, 14) ) 
        );
    }    

Also the minimum seems to be 1.8.5 not the 1.8.0 as per the tool tip.

Also Arduino IDE needs to be both installed and run at least once to create the AppData folders used to detect Arduino. Seems like it should never happen but it caught me out.

Hopefully when I rollback to pre 1.8.10 it will work and maybe I will have more comments.