chore(l10n): update Basque translations

Currently translated at 100.0% (12 of 12 strings)

Translation: Fossify/Paint
Translate-URL: https://hosted.weblate.org/projects/fossify/draw/eu/
Via: Weblate

Author: Alexander Gabilondo

app/src/main/res/values-eu/strings.xml

@@ -11,4 +11,5 @@
     <string name="change_background_color">Aldatu atzeko kolorea</string>
     <string name="app_launcher_name">Paint</string>
     <string name="use_relative_brush_size">Doitu pintzelaren tamaina zoom mailaren arabera</string>
+    <string name="clear_canvas_confirmation">Ziur zaude oihala garbitu nahi duzula?</string>
 </resources>