add abort installation button

[Uwe Bonnes]

The installer denies installation in the existing directory. But it also does not offer an option to abort. So you can kill ithe installer only from the starting console or rom windows frame allows. An abort option in the installer would be fine. And maybe an option to refresh an existing version that was perhaps screwed up somehow.

Moved from: MX2 rant: Installation starts with bad size to display Continue button and is not resizeable

[Oussama_TROUDI]

Hello @Uwe Bonnes 

Thanks for the feedback.

An internal ticket has been created to truck the request... I'll get back to you asap with updates.

Internal ticket number: CDM0063244 (This is an internal tracking number and is not accessible or usable by customers).

Regards,
Oussama