chore: rewrite user-facing JS messages in Setup module

Conservative cleanup of frappe.throw/msgprint messages per the message style
guide; meaning, severity, and .format() arguments are unchanged:

- index bare {} placeholders as {0}/{1}/... so translators can reorder
- move f-strings / .format() / concatenation out of _() (they break gettext
  extraction and never translate)
- wrap translatable dynamic values (DocType/Select labels) in _()
- fix grammar and colloquialisms
- drop no-op _() wrapping runtime-built strings

Part of #53976.

erpnext/setup/doctype/company/company.js

@@ -236,7 +236,7 @@ frappe.ui.form.on("Company", {
 							},
 							function (data) {
 								if (data.company_name !== frm.doc.name) {
-									frappe.msgprint(__("Company name not same"));
+									frappe.msgprint(__("Company name does not match"));
 									return;
 								}
 								frappe.call({

erpnext/setup/doctype/department/department.js

@@ -16,7 +16,7 @@ frappe.ui.form.on("Department", {
 	},
 	validate: function (frm) {
 		if (frm.doc.name == "All Departments") {
-			frappe.throw(__("You cannot edit root node."));
+			frappe.throw(__("You cannot edit the root node."));
 		}
 	},
 });