Add settings menu in top app bar

[sweisss]

• Settings menu should include aspects of material card view size and spacing

• Settings menu should also include options to organize the forecasts (alphabetically, separate volcanoes and region, custom, etc.)

[sweisss]

Note that commit b497c75 had the foresight to comment out the settings menu instead of fully removing it for ease of future development.

[sweisss]

The settings menu should also control the populate default links so that the app is not repopulated every startup.

[sweisss]

The top app bar settings menu can be unique to each fragment by calling

override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
...
}

from each fragment specifically.

[sweisss]

Included 3 options to menu on top app bar related to Issues #22 , #23, and #24 .

[sweisss]

Closing because #30 did not automatically close for some reason.