0.59 changelog (#18575)

* 0.59 changelog

* Fix spellcheck

* Update README.md

Co-authored-by: Heiko <61519853+htcfreek@users.noreply.github.com>

* Update README.md

Co-authored-by: Clint Rutkas <clint@rutkas.com>

* Update README.md

Co-authored-by: Clint Rutkas <clint@rutkas.com>

* Update README.md

Co-authored-by: Clint Rutkas <clint@rutkas.com>

* Fix spellcheck

* Fix spellcheck

* Address PR feedback

* Add recently merged fixes

* Fix spellcheck

* Address feedback

* Update README.md

Co-authored-by: Jay <65828559+Jay-o-Way@users.noreply.github.com>

* Update README.md

Co-authored-by: Jay <65828559+Jay-o-Way@users.noreply.github.com>

* Update README.md

Co-authored-by: Heiko <61519853+htcfreek@users.noreply.github.com>

* Update README.md

Co-authored-by: Jay <65828559+Jay-o-Way@users.noreply.github.com>

* Update README.md

Co-authored-by: Jay <65828559+Jay-o-Way@users.noreply.github.com>

* Update README.md

Co-authored-by: Jay <65828559+Jay-o-Way@users.noreply.github.com>

* Mention Windows App SDK upgrade

* Reword

* Update README.md

Co-authored-by: Heiko <61519853+htcfreek@users.noreply.github.com>

* Add self-contained winappsdk changes

* Remove mention to doing self-contained next release

* Update README.md

Co-authored-by: Heiko <61519853+htcfreek@users.noreply.github.com>
Co-authored-by: Clint Rutkas <clint@rutkas.com>
Co-authored-by: Jay <65828559+Jay-o-Way@users.noreply.github.com>

.github/actions/spell-check/expect.txt

@@ -1740,6 +1740,7 @@ Rstrtmgr
 RTB
 RTCS
 RTLREADING
+RTSS
 ruleset
 RUNACTIVEXCTLS
 runas
@@ -1881,6 +1882,7 @@ SOURCECLIENTAREAONLY
 SOURCEHEADER
 sourceid
 sourcesdirectory
+spam
 spdisp
 spdlog
 spdo