style(waybar): redesign waybar stylesheet with catppuccin mocha theme and pill-style modules

Update waybar-style.css to version 2 with the following changes:

- Switch to Catppuccin Mocha color scheme with blue accents
- Redesign bar as floating rounded container instead of bottom border
- Style modules as pill-shaped boxes with individual backgrounds
- Add Nerd Font symbols support for better icons
- Improve workspace buttons with hover effects and transitions
- Add tooltip styling and proper color coding for each module
- Update clock styling with dedicated background
- Enhance battery, network, and bluetooth status colors
- Refine spacing, padding, and border-radius throughout for modern appearance

configs/releng/airootfs/usr/local/share/fws/waybar-style.css

@@ -1,63 +1,107 @@
-/* FWS — style Waybar (assorti au thème SDDM et aux bordures Hyprland). */
+/* FWS — style Waybar v2 (Catppuccin Mocha, nuances de bleu).
+   Barre flottante arrondie, modules en « pilules », icônes Nerd Font
+   (paquet ttf-nerd-fonts-symbols, installé avec le bureau Hyprland). */
 
 * {
-    font-family: "Noto Sans", sans-serif;
+    font-family: "Noto Sans", "Symbols Nerd Font", sans-serif;
     font-size: 13px;
     min-height: 0;
 }
 
 window#waybar {
-    background: rgba(26, 26, 46, 0.92);   /* #1a1a2e */
+    background: rgba(30, 30, 46, 0.88);        /* base #1e1e2e */
-    color: #f0f0f5;
+    color: #cdd6f4;                            /* text */
-    border-bottom: 2px solid #89b4fa;      /* bleu FWS (Catppuccin) */
+    border: 1px solid rgba(137, 180, 250, 0.35);
+    border-radius: 14px;
+}
+
+tooltip {
+    background: #1e1e2e;
+    border: 1px solid #89b4fa;
+    border-radius: 10px;
+}
+tooltip label { color: #cdd6f4; }
+
+/* --- Espaces de travail --------------------------------------------------- */
+#workspaces {
+    background: #313244;                       /* surface0 */
+    margin: 5px 4px;
+    border-radius: 10px;
+    padding: 0 4px;
 }
 
 #workspaces button {
-    color: #a0a0b8;
+    color: #a6adc8;                            /* subtext0 */
-    padding: 0 10px;
+    padding: 0 8px;
+    margin: 3px 2px;
     border: none;
-    border-radius: 0;
+    border-radius: 8px;
     background: transparent;
+    transition: all 0.2s ease;
 }
 
 #workspaces button.active {
-    color: #f0f0f5;
+    color: #1e1e2e;
-    border-bottom: 2px solid #89b4fa;
+    background: #89b4fa;                       /* bleu */
+    font-weight: bold;
 }
 
 #workspaces button:hover {
-    background: rgba(255, 255, 255, 0.08);
+    color: #cdd6f4;
+    background: #45475a;
     box-shadow: none;
 }
 
 #window {
-    color: #a0a0b8;
+    color: #a6adc8;
-    margin-left: 12px;
+    margin-left: 10px;
+    font-style: italic;
 }
 
+/* --- Horloge (centre) ------------------------------------------------------ */
 #clock {
-    color: #f0f0f5;
+    color: #cdd6f4;
     font-weight: bold;
+    background: #313244;
+    padding: 0 16px;
+    margin: 5px 0;
+    border-radius: 10px;
 }
 
-#custom-keyhelp {
+/* --- Modules de droite : pilules ------------------------------------------- */
-    background: #89b4fa;
+#custom-keyhelp,
-    color: #1a1a2e;
+#backlight,
-    font-weight: bold;
-    padding: 0 12px;
-    margin: 5px 6px;
-    border-radius: 8px;
-}
-
-#custom-keyhelp:hover {
-    background: #b4d0fb;
-}
-
 #pulseaudio,
+#bluetooth,
 #network,
 #cpu,
 #memory,
+#battery,
 #tray {
-    color: #a0a0b8;
+    background: #313244;
-    padding: 0 10px;
+    padding: 0 12px;
+    margin: 5px 3px;
+    border-radius: 10px;
+    color: #cdd6f4;
 }
+
+#custom-keyhelp {
+    background: #89b4fa;                       /* bouton d'appel : bleu plein */
+    color: #1e1e2e;
+    font-weight: bold;
+}
+#custom-keyhelp:hover { background: #b4d0fb; }
+
+#backlight  { color: #f9e2af; }                /* jaune doux */
+#pulseaudio { color: #89b4fa; }
+#pulseaudio.muted { color: #6c7086; }
+#bluetooth  { color: #74c7ec; }                /* sapphire */
+#bluetooth.disabled { color: #6c7086; }
+#network    { color: #94e2d5; }                /* teal */
+#network.disconnected { color: #f38ba8; }
+#cpu        { color: #cba6f7; }                /* mauve */
+#memory     { color: #eba0ac; }                /* maroon */
+
+#battery.warning  { color: #f9e2af; }
+#battery.critical { color: #f38ba8; }
+#battery.charging { color: #a6e3a1; }