Added hiding bottom bar when magisk is not active

app/src/main/res/layout/activity_main_md2.xml

@@ -5,6 +5,8 @@
 
     <data>
 
+        <import type="com.topjohnwu.magisk.core.Info" />
+
         <variable
             name="viewModel"
             type="com.topjohnwu.magisk.ui.MainViewModel" />
@@ -65,6 +67,7 @@
         <com.google.android.material.card.MaterialCardView
             android:id="@+id/main_bottom_bar"
             style="@style/WidgetFoundation.Card.Elevated"
+            gone="@{!Info.env.isActive}"
             android:layout_width="224dp"
             android:layout_height="wrap_content"
             android:layout_gravity="bottom|center_horizontal"