waybar: extend functionality of network module

Change format for wifi and alt-format, add Wi-Fi signal strength icons.

.config/waybar/config.jsonc

@@ -61,13 +61,21 @@
         "on-click-right": "evolution -c calendar"
     },
     "network": {
-        "format-wifi": "{essid} ({signalStrength}%) ",
+        "format-wifi": "{icon} {essid}",
         "format-ethernet": "󰈀  {ifname}",
-        "tooltip-format": "{ifname} via {gwaddr} ",
-        "format-linked": "{ifname} (No IP) ",
-        "format-disconnected": "⚠ Disconnected",
-        "format-alt": "{ifname}: {ipaddr}/{cidr}",
-        "on-click-right": "nm-connection-editor"
+        "tooltip-format": "󰈁 {ifname} via {gwaddr}",
+        "format-linked": " {ifname} (No IP)",
+        "format-disconnected": "󰈂",
+        "format-alt": "󰈁 {ifname}: {ipaddr}/{cidr}",
+        "on-click-right": "nm-connection-editor",
+        "format-icons": [
+            "󰤨",
+	    "󰤥",
+	    "󰤢",
+	    "󰤟",
+	    "󰤯"
+	],
+	"max-length": 50
     },
     "pulseaudio": {
         "format": "{icon} {volume}%{format_source}",