Add filter input text of the DropDownList to the messages options so it can be localized

[nelito987]

With Kendo version 2025.2.520 the filterInput text has been set and the current value is 'Filter'. However, there is no built-in option in the API that provides the possibility to change the text. As the text is not part of the messages, it can not be localized in case another language is used.

Dojo - https://dojo.telerik.com/zidaocyO

Add the filter input text to the messages so localization and customizing the text are possible.

The issue also occur for the DropDownTree component - https://dojo.telerik.com/DpIfKmvp

[leerms]

This should be a hotfix prior to the next release as it opens the door to lawsuits from Canada. Please also add a way to remove the text entirely.