Commit Briefs
[minibuffer] jump_to_line: set the top_line too
This way, commands like toc, link-select & co will jump to the line and make that the first line in the window.
support completions in minibuffer + related interactive fns
* cmd.c (cmd_previous_completion): add previous-completion (cmd_next_completion): add next-completion (cmd_insert_current_candidate): add insert-current-candidate * minibuffer.c (enter_minibuffer): support completions in minibuffer