Adds Go Pro button at the bottom

app/src/main/java/net/pokeranalytics/android/ui/modules/feed/FeedFragment.kt

@@ -305,6 +305,20 @@ class FeedFragment : FilterableFragment(), RowRepresentableDelegate {
 			}
 		})
 
+		this.subscribe.setOnClickListener {
+			if (!AppGuard.isProUser) {
+				BillingActivity.newInstanceForResult(this, false)
+			} else {
+				Toast.makeText(requireContext(), R.string.purchase_message, Toast.LENGTH_LONG).show()
+				this.showSubscriptionButton()
+			}
+		}
+		this.showSubscriptionButton()
+
+	}
+
+	private fun showSubscriptionButton() {
+		this.subscribe.isVisible = !AppGuard.isProUser
 	}
 
 	private fun hideMessageBox(message: Preferences.FeedMessage) {

app/src/main/res/layout/fragment_feed.xml

@@ -109,6 +109,20 @@
 		app:layout_constraintBottom_toBottomOf="parent"
 		app:layout_constraintEnd_toEndOf="parent" />
 
+	<com.google.android.material.button.MaterialButton
+		android:id="@+id/subscribe"
+		android:text="@string/pro_purchase"
+		style="@style/PokerAnalyticsTheme.Button"
+		android:layout_width="wrap_content"
+		android:layout_height="wrap_content"
+		android:layout_marginStart="16dp"
+		android:layout_marginBottom="16dp"
+		android:paddingStart="24dp"
+		android:paddingEnd="24dp"
+		app:layout_constraintBottom_toBottomOf="parent"
+		app:layout_constraintStart_toStartOf="parent"
+		tools:text="Subscribe" />
+
 	<androidx.appcompat.widget.LinearLayoutCompat
 		android:id="@+id/messageBox"
 		android:layout_width="0dp"