show the warning icon again when there is media without description (#4806)

Regression from the Material 3 redesign

app/src/main/java/com/keylesspalace/tusky/components/compose/ComposeActivity.kt

@@ -843,12 +843,8 @@ class ComposeActivity :
                 )
             )
 
-            var oneMediaWithoutDescription = false
-            for (media in viewModel.media.value) {
-                if (media.description.isNullOrEmpty()) {
-                    oneMediaWithoutDescription = true
-                    break
-                }
+            val oneMediaWithoutDescription = viewModel.media.value.any { media ->
+                media.description.isNullOrEmpty()
             }
             binding.descriptionMissingWarningButton.visibility = if (oneMediaWithoutDescription) View.VISIBLE else View.GONE
         }

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

@@ -28,8 +28,8 @@
             android:layout_width="52dp"
             android:layout_height="wrap_content"
             android:layout_gravity="end"
-            android:padding="0dp"
             android:contentDescription="@string/description_post_language"
+            android:padding="0dp"
             android:textColor="?android:attr/textColorTertiary"
             android:textSize="?attr/status_text_large"
             android:textStyle="bold"
@@ -67,10 +67,10 @@
             android:layout_gravity="end"
             android:contentDescription="@string/hint_media_description_missing"
             android:padding="8dp"
-            app:srcCompat="@drawable/ic_missing_description_24dp"
-            app:tint="@color/tusky_orange_light"
-            app:tooltipText="@string/hint_media_description_missing"
-            android:visibility="invisible" />
+            app:icon="@drawable/ic_missing_description_24dp"
+            app:iconTint="@color/tusky_orange_light"
+            app:tooltipText="@string/hint_media_description_missing" />
+
     </com.google.android.material.appbar.MaterialToolbar>
 
     <androidx.core.widget.NestedScrollView