hyprctl completions: Use only awk rather than grep + awk

Using "awk '/<exp>/{ print $n }'" is more minimal and slightly faster
than using "grep '<exp>' | awk '{ print $n }'".

Signed-off-by: Lincoln Yuji <lincolnyuji@hotmail.com>

hyprctl/hyprctl.zsh

@@ -1,15 +1,15 @@
 #compdef hyprctl
 
 _hyprctl_cmd_2 () {
-    hyprctl monitors | grep Monitor | awk '{ print $2 }'
+    hyprctl monitors | awk '/Monitor/{ print $2 }'
 }
 
 _hyprctl_cmd_3 () {
-    hyprpm list | grep "Plugin" | awk '{print $4}'
+    hyprpm list | awk '/Plugin/{ print $4 }'
 }
 
 _hyprctl_cmd_0 () {
-    hyprctl clients | grep class | awk '{print $2}'
+    hyprctl clients | awk '/class/{ print $2 }'
 }
 
 _hyprctl_cmd_1 () {