The `navigation.instant` option prevents LaTeX rendering when navigatin to a page using the navigation side toolbar

[gkaf89]

This is our current navigation setup:

theme:
  features:
    - navigation.instant
    #- navigation.tabs
    - content.tabs.link

The navigation.instant option speeds up the loading of pages, but it prevents external plugins, like the plugin we use for LaTeX rendering, to run. This prevents for instance the rendering of math formulas when navigating to a page using the navigation toolbar.

I suggest we deactivate the instant navigation feature until these issues are resolved. We should also ensure that we don't have any massive page where frequent reloading can be annoying.