feat: versions for multiple configs on same wa

[lengyel-arpad85]

Changes proposed

• users can now add version tags, delimiting different designs they configure
• enables users to configure designs for multiple host sites, using the same wallet address
• the embed script has an additional property tag with which they can deicide which design to load into the host page
• importing the configs will display available versions / tags, giving option to select which they want to update / modify

screen-capture.1.mp4