v3.0

[Tabrisrp]

• Update container and lazyload library to version 3
• Update plugin version to 3.0, minimum PHP to 7.0, minimum WP to 5.4
• Code cleanup

[Mai-Saad]

@Tabrisrp I think we need to update the readme file, what do you think? we need to handle iframe as well to be working as same as the trunk (if we used preview image, the image won't be displayed in UI + LL classes won't be added in inspect view) 🙏

[Tabrisrp]

@Mai-Saad readme is updated already.

Can you show me an example of the case you describe?

[Tabrisrp]

@Mai-Saad Following up on the reported issue, the latest commits fix it. The preview image should be correctly displayed now when using the preview image for Youtube videos, and the image has the loading="lazy" attribute.