BUG: 350663
FIXED-IN: 5.12.8
When choosing a default browser app using the app list combobox, the choice was noly being saved after the combobox was used, because its signal was connected to an inline function that saved the choice, while the radio button that enabled the combobox was not. As a result, if you clicked on that radio button and didn't need to use the combobox because it was already showing your preferred browser, that action was not actually getting saved.
This patch fixes the situation ym moving the inline function into a real explicit slot function and connecting the radio button to it as well