fix(tables): wrap in table-container-inner

[caugner]

Summary

Fixes https://github.com/mdn/yari/issues/9962.

Problem

Tables in blog articles were overflowing on sm/md/lg screens, because they were only wrapped in figure.table-container, but not in figure.table-container-inner (like the BCD table).

Solution

Wrap tables in figure.table-container > figure.table-container.inner.

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Screenshots

Before	After

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How did you test this change?

Ran yarn && yarn dev and opened http://localhost:3000/en-US/blog/vs-code-tips-tricks/#shortcuts_for_navigation locally (requires mdn/mdn-studio).

[caugner]

Unfortunately, the current approach would cause a regression for large tables:

Before

After