It's highly likely that a full mod would need to be made in order to do something like this.
As I recall, not all text is stored in the strings of dialog.tlk, some are stored in the various GFF filetypes.
It would be worth checking a filename in specific to see if this is the case, for example, the first file in the "streamwaves" folder for me is "_m40acdart03999_.wav" when arranged by "date modified" anyway, that is the English installation of the game on Steam.
Organised by name and checking folders too "\streamwaves\globe\band01\NGLOBEBAND01000_.wav" for example.
It's quite the oversight that different languages were neglected on the mobile versions of the game.
On a somewhat related note, I was looking into changing the hardcoded elements of the GUI on Android today for my port of KotOR1 to KotOR2 and any other Total Conversions that might need that information one day. Tutorial #24 : https://deadlystream.com/topic/6886-tutorial-kotor-modding-tutorial-series/
Though it doesn't look like I will finish finding them at the moment.