DRY pass #2, batch 8: stale comments (#5372)

useNoteList no longer names a Search view; the desktop adapter's M10.7 plan
gave way to sync under the local core; local.ts's sharing comment sat above
settings; AccountList and password_resets still said there was no mail path;
NoteEditor kept an orphan checklist-flag comment, a textarea comment from
before blocks, and the link-preview comment above the file picker; the
serialize docstring's growth plan is now what it holds.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/src/adapters/index.ts

@@ -2,9 +2,8 @@
 // `api/client` in stores/views.
 //
 // The desktop shell runs fully offline against the on-device SQLite core
-// (`local.ts`, over Tauri `invoke`); the web build uses REST. A server-connected
-// desktop (opt-in sync) comes in M10.7 — at which point this becomes
-// `isDesktop() && !hasConfiguredServer() ? local : rest`.
+// (`local.ts`, over Tauri `invoke`); the web build uses REST. A desktop linked to a
+// server still reads and writes locally: the core syncs underneath.
 
 import { isDesktop } from "../desktop/bridge";
 import { rest } from "./rest";