Add missing videos to CSRF protection docs

[ace-of-aces]

Congrats on the release of the new docs, lookin' quite exquisite!🔥

This re-adds the videos for the CSRF protection docs that are currently missing in the new docs (downloaded from https://legacy.inertiajs.com/csrf-protection)

Also replaced controls="" with controls so the vids can actually be played :)

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Before:

After:

[joetannenbaum]

Great catch, thank you!