fix: mode of payment fetched from pos profile company in POS

[RitvikSardana]

Issue:
In a multi company setup where each company has one or more pos profiles, when setting mode of payments for the pos profile, these are fetched for the default company instead of the company for each pos profile.

Reason:
before the pos profile company was set, we were throwing the error.

[codecov]

Codecov Report

Merging #36696 (1bdd43d) into develop (d138948) will increase coverage by 0.10%.
Report is 89 commits behind head on develop.
The diff coverage is 80.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #36696      +/-   ##
===========================================
+ Coverage    64.72%   64.82%   +0.10%     
===========================================
  Files          791      792       +1     
  Lines        61633    61819     +186     
===========================================
+ Hits         39892    40077     +185     
- Misses       21741    21742       +1     

Files Changed	Coverage Δ
...rpnext/accounts/doctype/pos_invoice/pos_invoice.py	73.37% <80.00%> (+0.09%)	⬆️

... and 22 files with indirect coverage changes