Add popup reminder to inform users of trading rules

[ghost]

Requested by the support team.
There has been an uptick of users including bitcoin txids in payment reference fields.

Once app has started, shows popup:

@w0000000t @pazza83 @leo816 @MwithM 👀

[w0000000t]

Cool!
Myself, I would tweak it to make shorter and more straight to the point, so lazy users won't just skip it with "eh don't want to read it all, let's just click the green button and be done with it".

KNOW THE PENALTIES TO AVOID THE PENALTIES

Not following the trading rules [1] could make you lose money!
Make sure to check what the penalties [2] are, and have a chat with the support team [3] in case of doubts.

I would place the ALL CAPS warning directly in the green text title, for maximum impact and least text possible

[ghost]

@w0000000t I tried putting your all caps message in the title but there were a couple of reasons why it did not look good:

(a) it got truncated, and
(b) it seems way too harsh to be shouting in the popup title like that, at application startup.

So I prefer the all caps message in the text body, as shown in the OP. ☝️

example, for reference

[ghost]

@ripcurlx any chance this can go in the coming release, v1.9.0?

[ripcurlx]

utACK - Code changes are looking fine 👍