CO-2983 Mobile app pay open invoices

[josueBulle]

No description provided.

[ecino]

There are flake8 errors as well.

[codecov]

Codecov Report

Merging #1275 into devel will decrease coverage by 0.24%.
The diff coverage is 10.37%.

@@            Coverage Diff             @@
##            devel    #1275      +/-   ##
==========================================
- Coverage   53.87%   53.62%   -0.25%     
==========================================
  Files         293      294       +1     
  Lines       15166    15272     +106     
==========================================
+ Hits         8170     8189      +19     
- Misses       6996     7083      +87

Impacted Files	Coverage Δ
mobile_app_connector/models/account_invoice.py	9.09% <3.48%> (-10.91%)	⬇️
mobile_app_connector/models/payment_transaction.py	40% <40%> (ø)
crm_compassion/models/interaction_resume.py	55.81% <0%> (-4.19%)	⬇️
crm_compassion/models/res_partner.py	55.88% <0%> (-1.7%)	⬇️
mobile_app_connector/models/mobile_feedback.py	47.16% <0%> (-0.91%)	⬇️
mobile_app_connector/models/wordpress_post.py	32.72% <0%> (-0.61%)	⬇️
cms_form_compassion/models/cms_form.py	27.65% <0%> (-0.55%)	⬇️
mobile_app_connector/models/app_hub.py	73.07% <0%> (-0.37%)	⬇️
sbc_compassion/models/correspondence.py	34.07% <0%> (-0.26%)	⬇️
partner_communication/models/communication_job.py	67.13% <0%> (-0.19%)	⬇️
... and 9 more

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[ecino]

mobile_app_connector/models/account_invoice.py:123:45: F812 list comprehension redefines 'l_vals' from line 109
mobile_app_connector/models/account_invoice.py:142:89: E501 line too long (91 > 88 characters)