fix button visibility issue.

Author: zoff99

android-refimpl-app/app/src/main/res/layout/message_list_ft_incoming.xml

@@ -176,7 +176,7 @@
                         android:padding="2dp"
                         android:scaleType="fitCenter"
                         android:src="@android:drawable/ic_menu_save"
-                        android:visibility="visible"
+                        android:visibility="gone"
                         tools:ignore="HardcodedText" />
 
                     <ImageButton

android-refimpl-app/app/src/main/res/layout/message_list_ft_incoming_compact.xml

@@ -240,7 +240,7 @@
                     android:padding="0dp"
                     android:scaleType="fitCenter"
                     android:src="@android:drawable/ic_menu_save"
-                    android:visibility="visible"
+                    android:visibility="gone"
                     tools:ignore="HardcodedText" />
 
                 <ImageButton
@@ -258,7 +258,7 @@
                     android:padding="0dp"
                     android:scaleType="fitCenter"
                     android:src="@android:drawable/ic_menu_share"
-                    android:visibility="visible"
+                    android:visibility="gone"
                     tools:ignore="HardcodedText" />
             </LinearLayout>