fix crash in light mode

introduced in 5d7d881729

app/src/main/java/net/vonforst/evmap/ui/BindingAdapters.kt

@@ -401,4 +401,13 @@ fun loadImage(view: ImageView, url: String?) {
 @BindingAdapter("tooltipTextCompat")
 fun setTooltipTextCompat(view: View, text: String) {
     TooltipCompat.setTooltipText(view, text)
+}
+
+@BindingAdapter("tintNullable")
+fun setImageTint(view: ImageView, @ColorInt tint: Int?) {
+    if (tint != null) {
+        view.imageTintList = ColorStateList.valueOf(tint)
+    } else {
+        view.imageTintList = null
+    }
 }

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

@@ -167,7 +167,7 @@
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toStartOf="@+id/guideline5"
             app:layout_constraintTop_toTopOf="parent"
-            app:tint="@{BindingAdaptersKt.isDarkMode(context) ? @android:color/white : null}"
+            app:tintNullable="@{BindingAdaptersKt.isDarkMode(context) ? @android:color/white : null}"
             tools:srcCompat="@tools:sample/avatars" />
 
     </androidx.constraintlayout.widget.ConstraintLayout>