feat: show Watch on YouTube card for 360° videos instead of embedding

[sauldeleon]

YouTube's embedded player no longer supports interactive 360° viewing. Adds a youtube-360 embed type that renders a thumbnail + info card with a direct YouTube watch link instead of an iframe.

• Admin embed modal gains a 360° checkbox (YouTube type only)
• parseEmbedBlock and remarkEmbeds recognise youtube-360 fence type
• PostContentEmbed renders styled card with badge, info text, and link
• i18n strings added for en and es

Description

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Fixes # (issue)

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

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Project	Deployment	Actions	Updated (UTC)
portfolio	Ready	Preview, Comment	Jun 12, 2026 10:21am