fix(vidstack): guard localStorage access when unavailable

[cycsmail]

Summary

• add a LocalStorage wrapper in utils/storage.ts that guards getItem/setItem/removeItem in a try/catch
• route the player's storage reads/writes (media storage, font vars/options, default-layout menu checkbox) through it

Why

Some mobile WebViews expose localStorage as null (or throw on access when storage is disabled), so the direct localStorage.getItem(...) calls throw a TypeError and crash the player on init. The wrapper returns null / no-ops in that case instead of throwing.

pnpm --filter vidstack test passes (64 tests), including a new media-storage.test.ts that stubs localStorage as null and asserts LocalMediaStorage doesn't throw. typecheck/oxfmt not run in this pass.

Fixes #1444.

[mihar-22]

Thanks for this! I pushed one commit on top before merging: LocalStorage is now exported from an internal exports/storage.ts (which @vidstack/react bundles, like exports/font.ts) instead of the public exports/utils.ts, so the fix doesn't add public API. The dev logger's color cache write in foundation/logger/colors.ts goes through the wrapper too.