task row: inputs should have border radius
Both the text inputs in task rows (for title and notes) have a 1px border and no border-radius. Adwaita usually has a 3px border radius and a 2px blue border around text inputs, so this is not consistent with the rest of GNOME.
I propose adopting the default Adwaita style for inputs.
- change input border width, color and radius
- inputs have blue border when active
- inputs have 1px border when inactive, and 2px border when focused
- inputs have 3px border radius