Workaround for gutenberg do_blocks() render issue affecting tutor courses and dashboard pages

[abinalexpothen]

The do_blocks() function has a known bug of missing block css.

In my website, the home page, blog page, etc look like this:

But when I move to the tutor dashboard or courses page, the navigation block alignment gets broken like below:

On reading the tutor code, it was clear that this has to do with the do_blocks rendering issue, for which the known workaround is to assign the return value of do_blocks() to a variable before calling the wp_head().

This code change fixes my issue. Please modify as needed.

Steps to reproduce:

1. Set the theme to the default wordpress theme that supports full site editing.
2. Check /courses and /dashboard pages - They will have the alignment broken.

[bernhardkaindl]

@haruncpi @harunollyo @sifat009 Would you review this?

[harunollyo]

Not followed Contribution Guide