fix: When nutriscore is not (yet) computed, hide the "Learn more" but…

…ton (#4657)

* When nutriscore is not (yet) computed, hide the "Learn more" button

* Update app/src/main/java/openfoodfacts/github/scrachx/openfood/features/product/view/nutrition/NutritionProductFragment.kt

Co-authored-by: VaiTon <eyadlorenzo@gmail.com>

* Add missing import

Co-authored-by: VaiTon <eyadlorenzo@gmail.com>

app/src/main/java/openfoodfacts/github/scrachx/openfood/features/product/view/nutrition/NutritionProductFragment.kt

@@ -41,6 +41,7 @@ import androidx.core.text.bold
 import androidx.core.text.buildSpannedString
 import androidx.core.text.inSpans
 import androidx.core.view.isGone
+import androidx.core.view.isVisible
 import androidx.fragment.app.viewModels
 import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.DividerItemDecoration
@@ -220,6 +221,8 @@ class NutritionProductFragment : BaseFragment(), CustomTabActivityHelper.Connect
             }
         }
 
+        binding.nutriscoreLink.isVisible = product.nutritionGradeFr != null
+
         var servingSize: Measurement? = null
         val servingSizeString = product.servingSize
         if (servingSizeString.isNullOrEmpty()) {
@@ -274,7 +277,7 @@ class NutritionProductFragment : BaseFragment(), CustomTabActivityHelper.Connect
             nutrientsImageUrl = product.getImageNutritionUrl(langCode)
         }
 
-        // Wseful when this fragment is used in offline saving
+        // Useful when this fragment is used in offline saving
         if (mSendProduct != null && mSendProduct!!.imgUploadNutrition.isNotBlank()) {
             binding.addPhotoLabel.visibility = GONE
             nutrientsImageUrl = mSendProduct!!.imgUploadNutrition