fix: make operator in link filters translatable (backport #20884) (#2…

…0911)

* fix: translate operator in link filters

(cherry picked from commit 7892a8b)

* chore: remove unscrubbing while displaying link field filters

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Co-authored-by: barredterra <14891507+barredterra@users.noreply.github.com>

frappe/public/js/frappe/form/controls/link.js

@@ -475,7 +475,7 @@ frappe.ui.form.ControlLink = class ControlLink extends frappe.ui.form.ControlDat
 
 			let value = filter[3] == null || filter[3] === "" ? __("empty") : String(filter[3]);
 
-			return [__(label).bold(), filter[2], value.bold()].join(" ");
+			return [__(label).bold(), __(filter[2]), value.bold()].join(" ");
 		}
 
 		let filter_string = filter_array.map(get_filter_description).join(", ");