Improve keyboard avoidance across app

[retrixe]

Currently, all essential elements do avoid the keyboard correctly, but... some extra elements avoid the keyboard too sometimes:

[retrixe]

https://reactnavigation.org/docs/handling-safe-area/ for avoiding display notches and other insets

[retrixe]

• AddAccountDialog closes the keyboard the first time you press on the text field
• Opening the keyboard in a TextInputDialog then tapping out only closes the keyboard but not the dialog