Performance improvements: structural sharing & moderation opts context (#3785)

* Fix: correctly apply structural sharing to preferences object

* Move moderation opts into a context

* Fix import

* Remove log

* Pass userdid directly

* Pass moderationPrefs directly

src/components/dms/NewChat.tsx

@@ -8,7 +8,7 @@ import {useLingui} from '@lingui/react'
 import {sanitizeDisplayName} from '#/lib/strings/display-names'
 import {sanitizeHandle} from '#/lib/strings/handles'
 import {isWeb} from '#/platform/detection'
-import {useModerationOpts} from '#/state/queries/preferences'
+import {useModerationOpts} from '#/state/preferences/moderation-opts'
 import {useActorAutocompleteQuery} from 'state/queries/actor-autocomplete'
 import {FAB} from '#/view/com/util/fab/FAB'
 import * as Toast from '#/view/com/util/Toast'