fix: improve "Update Items" modal (#36105)

* fix: make "Update Items" modal larger

* fix: remove conversion factor from overview

Conversion factor doesn't make much sense without two different UOMs
next to it, hence moving it to row detail view
diff --git a/erpnext/public/js/utils.js b/erpnext/public/js/utils.js
index a859a67..8633be8 100755
--- a/erpnext/public/js/utils.js
+++ b/erpnext/public/js/utils.js
@@ -632,7 +632,6 @@
 		fields.splice(3, 0, {
 			fieldtype: 'Float',
 			fieldname: "conversion_factor",
-			in_list_view: 1,
 			label: __("Conversion Factor"),
 			precision: get_precision('conversion_factor')
 		})
@@ -640,6 +639,7 @@
 
 	new frappe.ui.Dialog({
 		title: __("Update Items"),
+		size: "extra-large",
 		fields: [
 			{
 				fieldname: "trans_items",