Configurable values as extension options

[mmattel]

Making those values configurable options for the extension, having the current as default if not set?

        let triesCounter = 1;
        let sleepInterval = 5000;
        let numTries = 5;

[sdarwin]

@mmattel yes. If they are configurable options, adjust the names of the configuration parameters a bit, maybe "retryDelay" and "numTries". There is no need for triesCounter. It starts at 1.
Pull requests welcome, if you're interested in that feature.