feat(waybar): add waybar configuration for hyprland desktop environment

Add waybar panel configuration with modules for workspaces, window title, clock, volume, network, CPU, and memory monitoring. Configured for top panel layout with French localization support.

configs/releng/airootfs/usr/local/share/fws/waybar-config.json

@@ -0,0 +1,51 @@
+{
+    "layer": "top",
+    "position": "top",
+    "height": 34,
+    "spacing": 4,
+    "modules-left": ["hyprland/workspaces", "hyprland/window"],
+    "modules-center": ["clock"],
+    "modules-right": ["custom/keyhelp", "pulseaudio", "network", "cpu", "memory", "tray"],
+
+    "hyprland/workspaces": {
+        "format": "{id}",
+        "on-click": "activate"
+    },
+    "hyprland/window": {
+        "max-length": 55,
+        "separate-outputs": true
+    },
+    "clock": {
+        "format": "{:%H:%M}",
+        "format-alt": "{:%A %d %B %Y — %H:%M}",
+        "tooltip-format": "<tt>{calendar}</tt>"
+    },
+    "custom/keyhelp": {
+        "format": "⌨ Raccourcis",
+        "tooltip-format": "Raccourcis clavier (SUPER+K)",
+        "on-click": "fws-hypr-keys"
+    },
+    "pulseaudio": {
+        "format": "Vol {volume}%",
+        "format-muted": "Muet",
+        "on-click": "wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle",
+        "tooltip": false
+    },
+    "network": {
+        "format-wifi": "{essid}",
+        "format-ethernet": "{ipaddr}",
+        "format-disconnected": "hors ligne",
+        "tooltip-format": "{ifname} — {ipaddr}"
+    },
+    "cpu": {
+        "format": "CPU {usage}%",
+        "interval": 3
+    },
+    "memory": {
+        "format": "RAM {percentage}%",
+        "interval": 3
+    },
+    "tray": {
+        "spacing": 8
+    }
+}