cross: redo payout flow

[thelostone-mc]

Description

• redo payout screen based on new mock
• makes payout a 3 step process with clearer steps
• update backend to handle when txn id is submitted

Testing

1. UI flow
   

2. paying out with txn id

3. paying out with QR Code

[codecov]

Codecov Report

Merging #6524 into master will increase coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #6524      +/-   ##
==========================================
+ Coverage   27.07%   27.09%   +0.01%     
==========================================
  Files         291      291              
  Lines       26682    26685       +3     
  Branches     3948     3949       +1     
==========================================
+ Hits         7223     7229       +6     
+ Misses      19192    19189       -3     
  Partials      267      267              

Impacted Files	Coverage Δ
app/dashboard/sync/etc.py	14.63% <ø> (ø)
app/dashboard/views.py	11.22% <0.00%> (-0.02%)	⬇️
app/retail/emails.py	22.34% <0.00%> (ø)
app/dashboard/embed.py	31.60% <0.00%> (+3.44%)	⬆️

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