v0.12.2

• Add widget_impl: directive for command_property!.
• Allow missing trailing comma in event_property!.
• Fix visibility and transform events losing track of a widget after info rebuild.
• Add visibility changed event properties, on_visibility_changed, on_show, on_collapse and others.
• Add VisibilityChangedArgs helper methods for tracking changes for a specific widget.
• Fix doc links in inherited properties fetched from redirected original pages.
• Fix cargo zng res not getting explicit metadata from lib crates.
• Implement --verbose for cargo zng res.
• Localize settings search box placeholder text.