Fix obsolete icon code points

With Nerd Fonts v2.3.0, some of the icons used here have been moved to
different codepoints to avoid collision with other characters. The old
codepoints are still usable at the moment, but will be removed entirely
with Nerd Fonts v3 and depending on local font configuration may not
work correctly now.

This replaces the old codepoints with their equivalents in the newly
allocated space, users with a reasonably up to date patched font should
notice no change.

See ryanoasis/nerd-fonts#365 for more details.

rofi-power-menu

@@ -29,11 +29,11 @@ texts[shutdown]="shut down"
 
 declare -A icons
 icons[lockscreen]="\uf023"
-icons[switchuser]="\uf518"
-icons[logout]="\uf842"
-icons[suspend]="\uf9b1"
-icons[hibernate]="\uf7c9"
-icons[reboot]="\ufc07"
+icons[switchuser]="\Uf0019"
+icons[logout]="\Uf0343"
+icons[suspend]="\Uf04b2"
+icons[hibernate]="\Uf02ca"
+icons[reboot]="\Uf0709"
 icons[shutdown]="\uf011"
 icons[cancel]="\u00d7"