Changes

# [https://www.answertopia.com/android-studio/creating-a-tabbed-interface-using-the-tablayout-component-in-java/ Creating a Tabbed Interface using the Android TabLayout Component]<br><br>

# [https://www.answertopia.com/android-studio/android-recyclerview-and-cardview-overview/ Working with the RecyclerView and CardView Widgets]<br><br>

# [[An Android Layout Editor Sample Data Tutorial]]<br><br>

# [[Working with the Android AppBar and Collapsing Toolbar Layouts]]<br><br>