Hi, I've been breaking my head over this for the past 5 hours and I just can't make it work. Apparently Starlight does not have built in support for for tabs for the sidebar like https://docs.astro.build/en/getting-started/ is using. I tried remaking it by copying components and dependencies from the astro docs github, but it's incredibly hard because there are so many dependencies which I need to also copy or rework, which makes the whole project much more complicated than what I want it to be just to add a simple feature like that tot the starlight theme.
I found the astro.config.ts and astro.sidebar.ts which then goes down into config/sidebar.ts which then needs enLabels from ../src/content/nav/en (which I have no intention of using) to then some more stuff in src/components/starlight/Sidebar.astro which has a bunch of imports from util... you get the idea, it's all just so much just to add tabs to the sidebar.
Is there any simpler solution that I'm missing or will I have to somehow reverse this to make this happen?