Inlines bodies of get_offline_status, get_offline_settings,
set_manual_offline, check_network, and get_pending_playlists from
offline::commands directly into the v2 wrappers in commands_v2/library.rs.
Deletes the entire offline::commands submodule (the inlined commands and
the additional dead Tauri command shims that lived alongside them — none
were registered with Tauri or referenced outside the submodule). Prunes
the now-unused tauri AppHandle/Emitter imports from offline/mod.rs.
Step 8 of legacy cleanup, group H.
cc
vicrodh
c647cd0373