Splits the existing Follow All button on people-list, follow-pack, follow-set, badge, and Team Soapbox detail views into a primary Follow All + a caret dropdown whose lone option is Mute All. Mute All opens an AlertDialog and, on confirm, merges every pubkey in the list into the viewer's NIP-51 kind 10000 mute list. Lets you treat any people list as a mute source as well as a follow source.
To make mute meaningful for users who already followed someone before muting, follow-scoped feed queries now subtract muted pubkeys from the authors filter at query time, via a shared useMutedAuthorFilter hook that builds the muted-pubkey Set once per mute-list change and exposes a single excludeMuted helper. The hook replaces ten inline copies of the same filter — including two that allocated a new Set per follow-list element inside a .filter() callback. Render-layer mute filtering stays in place as a second line of defense.
Also adds reusable hooks for the bulk operations (useFollowActions.followMany, useMuteList.muteManyPubkeys) and replaces four duplicated inline Follow All implementations with a single FollowAllSplitButton component.
Alex Gleason