; * lisp/transient.el: Fix section outline levels.

; * lisp/transient.el: Fix section outline levels.

In [1: 77a4c63fda5] "all" code sections were needlessly nested
below the ";;; Code:" section, which I do not like but can live
with.  However, a few sections were missed; nest them here too.
Also put the "frontmatter" code, which in my libraries usually
is the only code located in the ";;; Code:" section, into a new
";;;; Frontmatter" sub-section.  That way it is possible again
to cycle to the "show all headings but no code" state.

1: 2025-06-04 77a4c63fda5ca5d4c6d82092eaa06f1eb9b51302
   (outline--hidden-headings-paths): Fix slow saves (bug#78665)
(cherry picked from commit d4615d026bdfc0d40982070149fe9c55f0a661ee)