Enable client side modern image generation

[adamsilverstein]

Enable client-side image generation and compression for both new uploads and existing images.

Leveraging parts of https://github.com/swissspidy/media-experiments to build this in Gutenberg initially.

Gutenberg tracking issue:

• Tracking: Client-side media processing gutenberg#61447

[adamsilverstein]

Looks like web support is now available in https://github.com/kleisauke/wasm-vips - we should investigate that as a possible path forward in addition to squoosh.

[adamsilverstein]

https://github.com/myeveryheart/squoosh-browser looks very promising!

[adamsilverstein]

Another plus of client side image handling might be the ability to properly handle uploaded HEIC files.

[kleisauke]

wasm-vips v0.0.2 is now available which distributes the web variant in its NPM package. Note that it cannot process HEIC images (via libde265 and libheif), since that includes patent-encumbered HEVC-related logic.

[Richard-TR]

Just a little nudge to say this would be incredibly useful. All existing image optimisation solutions available for wordpress pale in comparison to squoosh. Perhaps even a little menu for setting settings for auto squooshing on upload. Would mean inexperienced users (contributors for example) don't have to mess around with things they don't understand.

[johnbillion]

Ancient core Trac ticket on this topic: https://core.trac.wordpress.org/ticket/19770

[adamsilverstein]

Thanks for the context @johnbillion !

[adamsilverstein]

Noting that Gutenberg is exploring adding compression features in this issue: WordPress/gutenberg#55106