Update Turkish key label translations

Greetings,

For Turkish KDE translations, we plan to switch to localised modifier key labels, instead of Ctrl, Shift etc. to match the latest Windows behaviour. Qt strings still use the labels as-is, there are no translations applied. I have already sent a request on Transifex to join the translation team, I still thought it would be a good idea to open a ticket to track the issue. I will do all the necessary modifications.

For your reference, my KDE identity is esari, Transifex username is bitigchi.

Please let me know if you need any other information.