fix: fetch appointment letter content in the same order as template

[ruchamahabal]

Problem:

1. Create an Appointment Letter Template with terms

   

2. Create an Appointment Letter with that template. The terms don't get fetched in the same order as the template. The system should follow the same sequence which is in Appointment Letter Template.

   

Fix:

While fetching terms, order by idx so that the same order is followed in all the letters generated using a template.

[codecov]

Codecov Report

Merging #28968 (60a3868) into develop (d7148ad) will increase coverage by 0.02%.
The diff coverage is 0.00%.

@@             Coverage Diff             @@
##           develop   #28968      +/-   ##
===========================================
+ Coverage    55.49%   55.51%   +0.02%     
===========================================
  Files         1128     1128              
  Lines        67287    67287              
===========================================
+ Hits         37339    37355      +16     
+ Misses       29948    29932      -16     

Impacted Files	Coverage Δ
...r/doctype/appointment_letter/appointment_letter.py	0.00% <0.00%> (ø)
erpnext/utilities/product.py	14.70% <0.00%> (-35.30%)	⬇️
erpnext/shopping_cart/product_info.py	30.30% <0.00%> (-21.22%)	⬇️
...e/asset_value_adjustment/asset_value_adjustment.py	86.04% <0.00%> (-3.49%)	⬇️
...e/shopping_cart_settings/shopping_cart_settings.py	65.38% <0.00%> (-1.93%)	⬇️
erpnext/shopping_cart/product_query.py	61.19% <0.00%> (-1.50%)	⬇️
erpnext/stock/report/stock_ageing/stock_ageing.py	89.78% <0.00%> (-0.73%)	⬇️
...next/accounts/doctype/subscription/subscription.py	81.84% <0.00%> (-0.56%)	⬇️
erpnext/portal/product_configurator/utils.py	33.06% <0.00%> (-0.41%)	⬇️
erpnext/hr/utils.py	74.29% <0.00%> (-0.41%)	⬇️
... and 14 more

[ruchamahabal]

@Mergifyio backport version-13-hotfix

[mergify]

backport version-13-hotfix

✅ Backports have been created

• #28969 fix: fetch appointment letter content in the same order as template (backport #28968) has been created for branch version-13-hotfix