Drupal 8.x

Trying to upgrade a Drupal 7 / Postgresql site to new D8 Apache and Postgresql hosts.  Drupal 8 setup and running. 

D8 site is newwiki.example.com is up.

In upgrade site source settings we are using "https://oldwiki.example.com" for source file location and "/mnt/oldpvt" for private file location.  This is a mount point to private files.

Receive:

In Drupal 7, we have full control over CKEditor and there were more toolbar icons available to add, like font size and save buttons.

Is there a way to add icons or shortcuts in Drupal 8's CKeditor? I am using Full HTML

 I am trying (without success) to hide some user profile tabs,

Everything I've read indicates that it should be straightforward.

I'm running Drupal 8.8.7.

I have created a custom module, which for testing purposes contains the following in the .module file:

I own a fledgling startup with a Drupal 8 website connected. We have an excellent developer however he is busy on other projects and expensive for a startup. I am therefore trying to educate myself on being able to do minor tasks and have managed to integrate Intercom with Tribe, however the Drupal site is another beast altogether.

Hello, I'm looking for a easy way to show on my template a cart icon only if cart has some elements ; I've tried with views, but

had problems to identify the cart associated to the current (normally anonymous) user.

Does that easy way exists ? Or can anyone point me to the right direction / documentation ? I've searched on Commerce 2.x docs,

but didn't find anything on this point (I don't want to show the cart, only show an icon when the cart exists and has more than 0 elements)

Thank you

Marco