[Proof of concept] Split with tabbed tag TWP10: condiciones

[AngelaRemolina]

Summary

This PR closes https://github.com/angelasofiaremolinagutierrez/PyZombis/issues/49 As a proof of concept to see how lectures would look splitted with tabs, here is the division of lecture TWP10: condiciones

However, I found some limitations that is worth mentioning:

• Titles are not supported inside tabs, I had to replace all titles ans subtitles with idented bullet lists.
• Code formmating is not supported on tab tittle, this happend when I tried to apply it:
• As the division is not always the same amount of content the size of the tab changes a lot, making the page larger and smaller when you change from one tab to another.

But apart from that, there is a big advantage, and is the power to go back immediately from the last sub lecture to the first one without having to go to all sub lectures first. Also there is less clicks the user has to do to get to a lecture. There is another way to achieve this and keeping the last structure and is by getting this menu on the navigation bar

This bar should appear in any runestone book, however it does not show in PyZombis (this is another issue).

Checklist

• [x] Variables, functions and comments are translated to Spanish
• [x] Functions follow underscore notation
• [x] Spell check done & typos fixed
• [x] All python code is PEP8 compliant
• [x] Test coverage with Playwright implemented; locators are Pyhton code
• [x] Reviewers assigned (all peers & at least 1 mentor)

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