User reported the social-account OAuth callback popup ('Threads account
connected!') stayed in English regardless of the active locale. The
hardcoded message was wired through SocialController and 11 platform
controllers (Bluesky, Facebook, Instagram, InstagramFacebook, LinkedIn,
LinkedInPage, Mastodon, Pinterest, Threads, TikTok, YouTube), plus the
Blade view that the popup renders.
Adds an accounts.popup_callback i18n block (en/pt-BR/es) covering:
- The popup chrome (title, closing/close-now status text).
- Generic success/reconnect messages (one shared 'Account connected!'
/ 'Account reconnected!' line — the popup already shows a checkmark
and lives for ~2s so platform-specific wording wasn't pulling weight).
- Error variants (account/page/channel) and contextual edge cases
(page not found, no Facebook pages, no YouTube channels, etc.).
Updates every popupCallback() callsite to read from these keys, plus
the Blade view's title and submessage. Regenerates the JSON locale
bundle so laravel-vue-i18n stays in sync.
cbea8394fc