fix: Multiple fixes

[ruchamahabal]

Front port for:
frappe/erpnext#31425
frappe/erpnext#31521
frappe/erpnext#31614

[codecov-commenter]

Codecov Report

Merging #21 (1223aa8) into develop (e1f5b13) will increase coverage by 0.05%.
The diff coverage is 90.00%.

@@             Coverage Diff             @@
##           develop      #21      +/-   ##
===========================================
+ Coverage    71.73%   71.78%   +0.05%     
===========================================
  Files          174      174              
  Lines         8624     8647      +23     
===========================================
+ Hits          6186     6207      +21     
- Misses        2438     2440       +2     

Impacted Files	Coverage Δ
...yroll/doctype/salary_structure/salary_structure.py	86.09% <78.57%> (-0.77%)	⬇️
hrms/hr/doctype/expense_claim/expense_claim.py	83.70% <100.00%> (+0.29%)	⬆️
hrms/overrides/employee_payment_entry.py	73.50% <100.00%> (+0.17%)	⬆️
hrms/payroll/doctype/salary_slip/salary_slip.py	87.33% <100.00%> (+0.18%)	⬆️