Fixed some Widget Zone in Vendor part that was using vc:admin-widget …

[bondazzi]

Issue

Was not possible to add Widget Plugin in:

• vendor_vendor_details_info_bottom
• vendor_vendor_details_seo_top
• vendor_vendor_details_seo_bottom

Solution

Changed
<vc:admin-widget widget-zone="..." additional-data="Model"/>
To
<vc:vendor-widget widget-zone="..." additional-data="Model" />

Breaking changes

If you have a breaking changes, list them here, otherwise list none.

Testing

1. Try to add a Widget Plugin in zones above

[KrzysztofPajak]

@bondazzi Thanks for contributing!