Astra Premium Sites 4.4.8

- Fix: Single pages not getting imported when no required plugin is associated to it.

- Fix: Starter Templates popup opens by default on every page load on Gutenberg pages.

Improvement: Changed 'Agency' tag with 'Premium' for templates in library. [Screenshot](https://share.bsf.io/rRuGrRjq)
Improvement: All strings with Agency Bundle will now be Growth Bundle. [Screenshot](https://share.bsf.io/v1ubZkLv)
Improvement: All strings with Mini Agency Bundle will now be Essential Bundle.