Feature Request: Replace GIFs with controllable video format in documentation

[benHPostHog]

Currently, the documentation uses GIFs to demonstrate features and workflows. While GIFs are convenient, they have limitations that impact the learning experience:

Problem:

• GIFs cannot be paused or slowed down
• Users cannot rewind to specific parts
• No playback controls available
• Can be difficult to follow complex sequences at GIF speed

Proposed Solution:
Replace GIFs with a more controllable video format that allows:

• Play/pause functionality
• Speed control
• Seeking/scrubbing
• Optional: Frame-by-frame viewing for technical demonstrations

Expected Benefits:

• Better learning experience for users
• Easier to follow complex workflows
• More accessible for users who need slower playback

From: https://posthoghelp.zendesk.com/agent/tickets/24805

[andyvan-ph]

Yeah, this would be great. Would be nice to not have to use youtube for video embed as well.