Option to hide the Wiki right sidebar

Proposal

I've been using the Wiki for a few months now.

The problem I found is about the right sidebar where the Wiki page titles are.

When I have the IDE window open and I want to have the Wiki page to add the progression next to it, dividing the screen, that sidebar takes up a lot of space and I don't see the possibility to collapse or disable it.

Could add an option to collapse or hide that sidebar when using the Wiki editor to have more space in it.

It would be simple, like creating a button with a JS function to insert hidden in the sidebar aside class and change the container-wrapper to container-fluid of the div before the main.

Like the one already on the Issues page.