Обновление v1.263

— Notes lang switcher: inline next to date, close on outside click, tune icon
— Notes: add Polylang language switcher in note header
— Admin: dashboard redirects to Pages Table, harden editor back-button hijack
— Theme: add site/socials shortcodes and fix notes sidebar thumb sizing
— Pages blocks: show private/draft in Latest, card class to escape notes anchor styling
— Site Creator: add max user as admin for telegram orders
— Firebase Auth: allow absolute URLs in redirect_url response
— Settings API: sideload siteIcon and author_avatar from URL