LIME on text tutorial

[loostrum]

• Adds the movie reviews dataset
• Adds a LIME on text tutorial
• Fixes bug in highlight_text (it wouldn't show the html properly)

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[loostrum]

@Reviewer: the notebooks action is failing, but not on the notebook added in this PR so I'm ignoring it :)

[elboyran]

@loostrum, nice notebook. Would you consider adding link to the method on Zenodo (once we put all of them there)? Probably I should make an issue for that...

[loostrum]

Thanks! I'd indeed change it once we have the models on zenodo (and we could then implement a download helper in dianna to automatically download them)
There's an issue already that somewhat covers it, I think: #108

[egpbos]

We need to retrigger CI, could you do an amend commit (git commit --amend) or rebase on main (git rebase main inside the PR branch, I tried it, it rebases automatically without conflicts) and force push to trigger it?

[egpbos]

Seems like this is ready, right?

[loostrum]

Yep, didn't merge yet because I wasn't sure if Elena reviewed all changes.