Add resizer for one-handed and regular mode, add resize action

java/res/values/strings-uix.xml

java/src/org/futo/inputmethod/latin/uix/Action.kt

java/src/org/futo/inputmethod/latin/uix/ResizerRect.kt

java/src/org/futo/inputmethod/latin/uix/UixManager.kt

...to/inputmethod/latin/uix/actions/KeyboardSizingActions.kt

java/src/org/futo/inputmethod/latin/uix/actions/Registry.kt

...c/org/futo/inputmethod/latin/uix/settings/pages/Typing.kt

...g/futo/inputmethod/v2keyboard/KeyboardSizingCalculator.kt