waybar: Fix remaining status bar icons

desktop/.config/waybar/config

@@ -120,12 +120,12 @@
     },
     "pulseaudio": {
         "format": "{volume}% {icon}",
-        "format-bluetooth": "{volume}% {icon}",
+        "format-bluetooth": "{volume}% {icon} ",
         "format-muted": "",
         "format-icons": {
             "headphone": "",
             "hands-free": "",
-            "headset": "",
+            "headset": "󰋎",
             "phone": "",
             "portable": "",
             "car": "",
@@ -166,7 +166,7 @@
     },
     "custom/wireguard": {
         "format-icons": {
-            "default": "嬨"
+            "default": "󰖂"
         },
         "exec": "~/.config/waybar/modules/wireguard json",
         "exec-if": "command -v nmcli >/dev/null 2>&1",