Browser extension: detect and subscribe to standard.site publications on ATProto substandard.blog

chore(release): v2.1.0 #583

targeting main from release/2.1.0
Merged opened by and assigned to affine-nimcha.test.pds.did.bot
targeting main from release/2.1.0

Bump the extension to 2.1.0 for the Panoptiblog surfaces and the 2.1.0 reliability and accessibility fixes.

The release artifact built from this tree passes typecheck, the full suite, smoke, and the store-identity auth probe.

Commits 0