astro 2.9.4

#7826 31c4031ba Thanks @Princesseuh! - Fix astro:assets not working on Windows in build when using Squoosh
#7823 5161cf919 Thanks @matthewp! - Adds an astro:beforeload event for the dark mode use-case
#7836 59b556232 Thanks @matthewp! - Upgrade compiler to bring in Image view transition support
#7824 267487e63 Thanks @matthewp! - Prevent navigation on hash change
#7829 b063a2d8a Thanks @Princesseuh! - Fix astro:assets endpoint not working in dev and SSR if experimental.assets was enabled by an integration (such as Starlight)
#7734 d5f526b33 Thanks @Princesseuh! - Fix some global state related to astro:assets not getting cleaned out properly in SSR with no pre-rendered pages
#7843 7dbcbc86b Thanks @matthewp! - Fixes head propagation regression