Issues on Extra Block Types (EBT): Stats related to standards

MR created with the fix: https://git.drupalcode.org/project/ebt_stats/-/merge_requests/4

I will review this MR.

MR !4 looks good to me.
All the errors and warnings are fixed.

RTBC +1.

Hi RenatoG, Charchil Khandelwal, thank you! Yes, I used node-sass to compile SCSS to CSS, and it looks like it has another code style rather than code sniffer.