Encode and decode copy-to-clipboard functionality using base64

[xenova]

Fixes issue where the code attribute for copy-to-clipboard functionality is interpreted as valid Svelte code, which leads to SSR errors.

[xenova]

The failed tests seem to be related to a recent update of timm, and shouldn't have anything to do with this PR.

[coyotte508]

Can you give an example of markdown that fails with current code?

[xenova]

Can you give an example of markdown that fails with current code?

Sure thing - sorry, I had mentioned to @mishig25 privately.

# This is test\n\n
```jsx
let worker = new Worker(new URL('./worker.js', import.meta.url));

[coyotte508]

if you add a newline between #this is test and the code sample, does the problem still happen?

Edit ok, tested and it doesn't work:

Trying with your branch

Edit 2: Same error. PR: https://github.com/huggingface/huggingface.js/pull/192/files

[xenova]

That's odd; it works locally.

Here's the original version rendered correctly:

I did notice that, when testing locally, it sometimes uses a cached version of the doc builder.

Edit: I see it's actually producing a different error, and it's trying to evaluate the worker instantiation.

[coyotte508]

Ok after a few tries your fix worked! :) (github action cache...)

Approving, leaving it up to @mishig25 to take at second look & merge next week

[mishig25]

lgtm!
I've tested the build on transformers docs & everything is working as expected huggingface/transformers#23361

Therefore, merging the PR 🚀

(test is failing for unrelated reason to this PR)