Fix selector-max-type end positions (#7518)

* Fix inaccurate end positions in `selector-max-type`

* cleanup

* cleanup

* Create shaggy-news-leave.md

* Update .changeset/shaggy-news-leave.md

Co-authored-by: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>

* fix

* Update lib/utils/flattenNestedSelectorsForRule.mjs

Co-authored-by: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>

* finish suggested edit

* fix indices

* apply suggestion from code review

* fix end positions

* trim before length

* Add missing `column`

* update test description

---------

Co-authored-by: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>

.changeset/shaggy-news-leave.md

@@ -0,0 +1,5 @@
+---
+"stylelint": patch
+---
+
+Fixed: `selector-max-type` end positions