fix: searchfields as per customize form not working for Item

[rohitwaghchaure]

Issue

Set item_name in the search fields for the Item doctype using customize form

Still other columns like item_group, description showing in the dropdown

After Fix

[codecov]

Codecov Report

Merging #32414 (3656f7d) into develop (d5359bb) will decrease coverage by 0.24%.
The diff coverage is 100.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #32414      +/-   ##
===========================================
- Coverage    64.00%   63.76%   -0.25%     
===========================================
  Files          817      817              
  Lines        58172    58177       +5     
===========================================
- Hits         37232    37095     -137     
- Misses       20940    21082     +142     

Impacted Files	Coverage Δ
erpnext/controllers/queries.py	62.84% <100.00%> (-0.26%)	⬇️
...eport/item_variant_details/item_variant_details.py	31.32% <0.00%> (-53.02%)	⬇️
...e_sales_analytics/supplier_wise_sales_analytics.py	59.01% <0.00%> (-31.15%)	⬇️
...tch_item_expiry_status/batch_item_expiry_status.py	67.92% <0.00%> (-24.53%)	⬇️
...wise_balance_history/batch_wise_balance_history.py	67.79% <0.00%> (-23.73%)	⬇️
...saction/incorrect_balance_qty_after_transaction.py	88.37% <0.00%> (-11.63%)	⬇️
...em_wise_sales_register/item_wise_sales_register.py	50.88% <0.00%> (-11.51%)	⬇️
...t/accounts/report/sales_register/sales_register.py	73.68% <0.00%> (-8.19%)	⬇️
...pnext/setup/doctype/sales_partner/sales_partner.py	65.21% <0.00%> (-4.35%)	⬇️
...ck/report/cogs_by_item_group/cogs_by_item_group.py	86.32% <0.00%> (-3.42%)	⬇️
... and 25 more