Fixes AND-153

[zaiatsartem]

Purpose

Update token placeholder

Changes

• When a logo fails to load the default icon is shown instead of an infinite loading spinner

Checklist

• My code follows the style of this project.
• The code compiles without warnings.
• I have performed a self-review of the changes.
• I have documented my code, in particular the intent of the
  hard-to-understand areas.
• (If necessary) I have updated the CHANGELOG.

[Radiokot]

The idea was to show the default icon only if the token icon fails to load, not to completely replace the loader. Keep the loader, only use the new icon for .error()