TopAppBar
Top app bars display information and actions at the top of a screen.
This small TopAppBar has slots for a title, navigation icon, and actions.
Parameters
the title to be displayed in the top app bar
the Modifier to be applied to this top app bar
the navigation icon displayed at the start of the top app bar. This should typically be an IconButton or IconToggleButton.
the actions displayed at the end of the top app bar. This should typically be IconButtons. The default layout here is a Row, so icons inside will be placed horizontally.
a window insets that app bar will respect.
a TopAppBarScrollBehavior which holds various offset values that will be applied by this top app bar to set up its height and colors. A scroll behavior is designed to work in conjunction with a scrolled content to change the top app bar appearance as the content scrolls. See TopAppBarScrollBehavior.nestedScrollConnection.