PixelPaint: Propagate errors from making tool property widgets

Author: https://github.com/krkk
Commit: be717edd33
Pull-request: https://github.com/SerenityOS/serenity/pull/17445
Reviewed-by: https://github.com/AtkinsSJ ✅

Userland/Applications/PixelPaint/Tools/EraseTool.h

@@ -20,7 +20,7 @@ public:
     EraseTool() = default;
     virtual ~EraseTool() override = default;
 
-    virtual GUI::Widget* get_properties_widget() override;
+    virtual ErrorOr<GUI::Widget*> get_properties_widget() override;
 
 protected:
     virtual Color color_for(GUI::MouseEvent const& event) override;