Release v1.2.141

Backend image: dculus/forms-backend:v1.2.141 (promoted from the build verified on dev).

What's Changed

• feat(templates): public templates, sign-up from template, save as template by @bannarisoftwares in #461
• fix(templates): address CodeRabbit review of #461 by @bannarisoftwares in #462
• feat(templates): SEO template catalog, @vercel/og thumbnails and form link previews by @bannarisoftwares in #464

Full Changelog: v1.2.140...v1.2.141