Fixes #5351 - listen to onIconChanged in HomeFragment

app/src/main/java/org/mozilla/fenix/home/HomeFragment.kt

@@ -6,6 +6,7 @@ package org.mozilla.fenix.home
 
 import android.animation.Animator
 import android.content.DialogInterface
+import android.graphics.Bitmap
 import android.graphics.drawable.BitmapDrawable
 import android.os.Bundle
 import android.view.Gravity
@@ -110,6 +111,10 @@ class HomeFragment : Fragment() {
         override fun onTitleChanged(session: Session, title: String) {
             if (deleteAllSessionsJob == null) emitSessionChanges()
         }
+
+        override fun onIconChanged(session: Session, icon: Bitmap?) {
+            if (deleteAllSessionsJob == null) emitSessionChanges()
+        }
     }
 
     private val collectionStorageObserver = object : TabCollectionStorage.Observer {