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This makes the tutorial nav align with the playground nav — we now have a
<select>
for choosing an exercise instead of the slightly funky thing we have onmain
, and the breadcrumbs go next to it, rather than being cramped into the sidebar (and frequently truncated). The 'solve' button goes to the right hand side and uses the same button styles as everywhere else, so there's no longer a big shouty thing in the middle of the page. The whole thing is just a bit calmer.There is still some room for improvement. There's no longer as clear a visual indication that you've completed an exercise (maybe adding checkmarks in the filetree could do this?), and (though it's unrelated to this PR) we have a decent chunk of real estate devoted to an address bar for the iframe even though there's nowhere to navigate to. But I think it's enough of an improvement that we can come back to that stuff later.