Merge from origin/emacs-28

Merge from origin/emacs-28

d742cc3c20 (origin/emacs-28) ; etc/NEWS: Fix typos
28db29590f * admin/notes/unicode: Refer to Unicode's emoji-style.txt
9bd2f59db6 Handle VS-16 correctly for non-emoji codepoints
e55e2d4a11 ; * etc/NEWS: Minor copyedit about 'repeat-mode'.
380981ddb5 Adjust bug-reference-bug-regexp default values to match on...
c1cf95a0e1 ; * doc/emacs/windows.texi: Doc fix.
98eb6d783a Fix a typo in emacs-lisp-intro.texi
f5b8f626e3 Fix some Tramp problems
fc988a7113 Adapt Tramp manual
0c241043a8 Further fixes to Elisp manual
8e8a920246 * lisp/progmodes/cc-engine.el (c-forward-decl-or-cast-1): ...
5a3242301d Rename tab-bar-drag-maybe to tab-bar--dragging-in-progress
bb4209a5a5 Fix xref elisp identifier namespace mistake

# Conflicts:
#	etc/NEWS