Language Keymap extras backport from ZSA fork (#6198)

* Swedish extra keymap refactor

* Fix swedish $ sign definition (#81)

* Fix br abnt2 keymap compilation error

* Add PR changelog doc

* Update PR6198.md

quantum/keymap_extras/keymap_br_abnt2.h

@@ -17,7 +17,7 @@
 #ifndef KEYMAP_BR_ABNT2_H
 #define KEYMAP_BR_ABNT2_H
 
-#include "keymap_common.h"
+#include "keymap.h"
 
 /* Scan codes for the Brazilian ABNT2 keyboard layout */