Implement installation path check on Windows (#3642)
Implement installation path check on Windows (#3642)

* Implement installation path check on Windows

Prior to starting the installation, check if the install location
contains special characters and if so use a different default install
location as well as display a prompt to the user providing additional
details.

This is in response to #3605, for which a proper solution has yet to be
found.

* Ensure the destination location dialog is always shown

This resolves #552

* Show the Welcome dialog

Rather then potentially being greeted with the newly implemented
prompt on the destination location dialog if they have special
characters in their install path, greet the user with the Welcome
dialog when they initially launch the installer.

* Reorder/group setup items logically

bisq-network/exchange,bitsquare/bitsquare,bisq-network/exchange,bitsquare/bitsquare