Consider adding useful chromium flags

[fechnert]

First of all, thank you for your great work! Your script helped me in the early days setting up multiple kiosk instances for the new DIVERA 24/7 dashboards.

I added some more flags to the chromium startup to avoid some kind of things and i just wanted to share them with you to contribute them back. Depending on the chromium version used, some of these flags might be deprecated, but for me it was worth having them specified.

• --disable-infobars to hide these nasty info bars
• --disable-translate --disable-features=Translate --disable-features=TranslateUI to hide any kind of translation pop ups
• --no-first-run to hide the "Whats new" page
• --no-default-browser-check to disable the default browser check

Cheers!