ui: Update slot select prompt text

app-common/src/main/res/layout/fragment_download_slot_select.xml

@@ -9,10 +9,15 @@
         android:text="@string/download_wizard_slot_select"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:gravity="center_horizontal"
         android:textSize="20sp"
-        android:layout_margin="20sp"
+        android:layout_marginTop="20sp"
+        android:layout_marginBottom="20sp"
+        android:layout_marginStart="60sp"
+        android:layout_marginEnd="60sp"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constrainedWidth="true"
         app:layout_constraintTop_toTopOf="parent" />
 
     <androidx.recyclerview.widget.RecyclerView

app-common/src/main/res/values/strings.xml

@@ -61,7 +61,7 @@
     <string name="download_wizard">Download Wizard</string>
     <string name="download_wizard_back">Back</string>
     <string name="download_wizard_next">Next</string>
-    <string name="download_wizard_slot_select">Confirm the eSIM slot:</string>
+    <string name="download_wizard_slot_select">Select or confirm the eSIM you would like to download to:</string>
     <string name="download_wizard_slot_title">Logical slot %d</string>
     <string name="download_wizard_slot_type">Type:</string>
     <string name="download_wizard_slot_type_removable">Removable</string>