Makes ScrollView as the root layout

Signed-off-by: Arthur Diniz <arthurbdiniz@gmail.com>

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

-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     tools:context="chat.rocket.android.about.ui.AboutFragment">
 
-    <ScrollView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent">
-
     <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
@@ -62,6 +59,4 @@
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 
-    </ScrollView>
-
+</ScrollView>
\ No newline at end of file
-</androidx.constraintlayout.widget.ConstraintLayout>