Added support for server-provided generic actions from the Friends WordPress plugin extension endpoint.
Added inline actions that can run directly inside the popup without opening a new tab.
Added inline form support for action inputs, including editable text fields, textareas, required fields, placeholders, and tag-style text inputs.
Added placeholder replacement for action URLs, fields, headers, and form defaults, including current page URL, host, title, and captured HTML.
Added inline action submission with success/error messages and optional result links returned by the server.
Improved popup styling for inline action forms, buttons, status messages, focus states, and dark/light mode.