Walletwasabi: Add notification when too many coins registered

[MaxHillebrand]

Problem

currently when more than 7 coins are registered for the CoinJoin, then the error notification shows that there are not sufficient funds selected for the mix. Although this is correct, it is misleading the user as it does not tell about the too many coins.

Solution

Add a notification that is thrown when more than 7 coins are registered, and that says

Error!
You can only register up to 7 coins.

[nopara73]

ACK

[garceri]

I was about to open an issue about "Not sufficient funds selected". That notification is definitely needed

[MaxHillebrand]

@garceri this notification you want is already implemented.

[MaxHillebrand]

To be clear.
If there are more than 7 coins, who in total sum up to above the minimum denomination, but where any subsection of 7 coins do not sum to the minimum, then a notification should be thrown Error! You can only register up to 7 coins..

If there are less than 7 coins that sum to below the minimum, then the current notification of Not sufficient funds selected is good and can remain.

[MaxHillebrand]

To be clear.
If there are more than 7 coins, who in total sum up to above the minimum denomination, but where any subsection of 7 coins do not sum to the minimum, then a notification should be thrown Error! You can only register up to 7 coins..

If there are less than 7 coins that sum to below the minimum, then the current notification of Not sufficient funds selected is good and can remain.

[PeterXMR]

Thx for info. I'm working on it 💪

[nopara73]

Note that the coinjoining code will be replaced within a year with a new mixing tech's implementation. Why it's important is because it enables us to do solutions that normally we'd break hands and cut programming licenses for.