In dialogs where the user is asked whether they want to permanently delete something, It's possible a user might ignore the warning and only focus on the buttons. If they only see "Delete," they might click it thinking it will simply send the files to the trash, and mistakenly delete their files permanently without realizing it.
This commit changes the button text from "Delete" to "Delete Permanently" so the user has another chance to read what they're about to do and avoid performing a destructive action.
This is my first actual code change, and I mostly copied the code which is a few lines below, changed the title and the icon. If this is not the right way to approach this change please feel free to close this merge request (or help me), as I'm yet to learn enough C++ to contribute with a more complex change. :)