Fix about screens minor UI issues

application/vlc-android/res/layout/about.xml

@@ -397,6 +397,8 @@
                 android:layout_marginStart="16dp"
                 android:layout_marginTop="24dp"
                 android:layout_marginEnd="16dp"
+                android:clickable="true"
+                android:focusable="true"
                 android:layout_marginBottom="8dp"
                 app:cardBackgroundColor="?attr/background_default_darker"
                 android:foreground="?android:attr/selectableItemBackground"

application/vlc-android/res/layout/license_activity.xml

@@ -39,6 +39,7 @@
                     android:clipToPadding="false"
                     android:paddingStart="16dp"
                     android:paddingEnd="16dp"
+                    android:paddingBottom="48dp"
                     android:fastScrollEnabled="true"
                     android:scrollbars="vertical"
                     vlc:layout_behavior="@string/appbar_scrolling_view_behavior" />