RankMath SideBar

[jbma]

Is your feature request related to a problem? Please describe.
We would like to promote RankMath the same way we do for WP Rocket :

• If WP Rocket isn't installed display the "We recommend you WP Rocket" in the sidebar of Imagify option
• If RankMath isn't installed display then "We recommend you RankMathSEO

Here are the content we should add for RankMath :

Rank Math SEO is your all-in-one solution for maximizing website visibility. Optimize content, track keywords, and dominate search rankings effortlessly.

And the selling points :

<li><?php _e( 'Improve your Website's SEO.', 'imagify' ); ?></li>
<li><?php _e( 'Rank higher in Google.', 'imagify' ); ?></li>
<li><?php _e( 'Optimize content for Search Engines', 'imagify' ); ?></li>
<li><?php _e( 'Advanced Schema options.', 'imagify' ); ?></li> 

We should link to this https://rankmath.com/imagify-offer/

We can use the yellow color of RankMath for the button and this logo : https://rankmath.com/wp-content/themes/rm/images/rank-math-logo.svg