Integrate the Buy/Sell form into the widget

[prayagd]

Context

In order to provide partners with link integration, this ticket is to integrate the Buy/Sell form into the widget

Todo

• Add the form to the widget which currently starts only from the Details page
• All the partner id parameter should work even after this migration of the Buy/Sell form into the widget
• The existing parameter integration should also work, incase the partner already has an UI and just wants to pass onto the parameters to the Vortex widget

[prayagd]

Hey team! Please add your planning poker estimate with Zenhub @ebma @gianfra-t @Sharqiewicz