fix(fish): replace left-over exa in fish completion

Signed-off-by: Sandro-Alessio Gierens <sandro@gierens.de>

completions/fish/eza.fish

@@ -74,7 +74,7 @@ complete -c eza -s t -l time -d "Which timestamp field to list" -x -a "
     accessed\t'Display accessed time'
     created\t'Display created time'
 "
-complete -c exa -s X -l dereference -d "dereference symlinks for file information"
+complete -c eza -s X -l dereference -d "dereference symlinks for file information"
 complete -c eza -s m -l modified -d "Use the modified timestamp field"
 complete -c eza -s n -l numeric -d "List numeric user and group IDs."
 complete -c eza -l changed -d "Use the changed timestamp field"