fix: set Expense Claim Payable Account in Expense Claim

[zeta17]

When making an Expense Claim from Employee Advance, field Payable Account is still taken from the Company - Default Payable Account, while if you make a new Expense Claim field Payable Account is filled from Company - Default Expense Claim Payable Account.

[ruchamahabal]

@zeta17 A note for future contributions: Commit messages must follow the conventional commit specifications:
conventionalcommits.org/en/v1.0.0-beta.2

[codecov-commenter]

Codecov Report

Merging #51 (d739b1e) into develop (1e7a11f) will decrease coverage by 0.04%.
The diff coverage is 0.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop      #51      +/-   ##
===========================================
- Coverage    71.28%   71.23%   -0.05%     
===========================================
  Files          176      176              
  Lines         8761     8761              
===========================================
- Hits          6245     6241       -4     
- Misses        2516     2520       +4     

Impacted Files	Coverage Δ
hrms/hr/doctype/expense_claim/expense_claim.py	84.07% <0.00%> (ø)
hrms/hr/doctype/shift_type/shift_type.py	86.41% <0.00%> (-2.47%)	⬇️
...ms/hr/doctype/shift_assignment/shift_assignment.py	90.77% <0.00%> (-0.49%)	⬇️
hrms/payroll/doctype/salary_slip/salary_slip.py	87.06% <0.00%> (-0.13%)	⬇️