[FIX] Wallet sort outputs before swapping

[lollerfirst]

From Issue: #640

Wallet should order inputs to all swaps and remember which outputs to keep or send?

I am sorting the inputs here but I am not sure what do you mean by "remember which outputs to keep or send". Isn't it already doing it?

[callebtc]

I was referring to the outputs not the inputs, my bad. The output sorting can tell the mint what portion of the outputs you're going to keep vs send (imagine you create ouputs [[...1000 sat], [...53 sat]], the mint can infer you're probably sending 1000 sat to someone. We can sort the outputs per amount before a swap, then un-sort them again so we know what part to keep vs to send (should be a fairly simple change).

[lollerfirst]

Should be good now

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.32%. Comparing base (700320a) to head (3988f96).
Report is 12 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #648      +/-   ##
==========================================
+ Coverage   56.57%   66.32%   +9.74%     
==========================================
  Files          98       81      -17     
  Lines       10568     8371    -2197     
==========================================
- Hits         5979     5552     -427     
+ Misses       4589     2819    -1770     

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