Add dialout permissions instructions to no-port

[SirGoodenough]

I didn't have a way to test the code or build this.
Please do a code review.

This adds a message for Linux users having problems getting the WebTools to grab a port.

[balloob]

We should only show this message if we know that the user is using a Linux platform. You can test for that using /Linux/.test(navigator.platform)

[SirGoodenough]

And likewise we should only send windows messages if the user is on a windows platform, etc.
I personally don't know how to pull that off.
If there is someone that can do this now, great.
Otherwise what's one more message in that stack?

This problem had me stuck for a long time, like a year. I hate windows that much...
Jessie got me going finally when I b**** about it on the last release party.

And I found this showing that command is deprecated...
https://developer.mozilla.org/en-US/docs/Web/API/Navigator/platform

Which says that construct is deprecated.

[RosemaryOrchard]

There is an alternative: https://developer.mozilla.org/en-US/docs/Web/API/NavigatorUAData/platform

[SirGoodenough]

Thanks for the link. I read that over and still have no clue what to do with it.
I'm looking for someone that can pull this off.

[balloob]

Thanks!