feat(rofi): add rofi configuration for fws application menu

Add rofi configuration file with FWS styling matching the Hyprland wofi look. Includes dark background, blue borders and selection, icon support, and Catppuccin Mocha color scheme.

configs/releng/airootfs/usr/local/share/fws/rofi-config.rasi

@@ -0,0 +1,75 @@
+/* FWS — rofi (menu d'applications i3, Super+R) : même look que wofi sous
+   Hyprland — fond sombre, bordure et sélection bleues, icônes. */
+
+configuration {
+    show-icons: true;
+    display-drun: "Applications";
+}
+
+* {
+    bg:       #1e1e2eF5;
+    surface:  #313244;
+    text:     #cdd6f4;
+    subtext:  #a6adc8;
+    blue:     #89b4fa;
+    darkbase: #1e1e2e;
+    font: "Noto Sans 12";
+    background-color: transparent;
+    text-color: @text;
+}
+
+window {
+    background-color: @bg;
+    border: 2px;
+    border-color: @blue;
+    border-radius: 14px;
+    width: 560px;
+}
+
+mainbox {
+    padding: 8px;
+}
+
+inputbar {
+    background-color: @surface;
+    border-radius: 10px;
+    margin: 4px;
+    padding: 8px 12px;
+    children: [ prompt, entry ];
+}
+
+prompt {
+    text-color: @blue;
+    margin: 0 8px 0 0;
+}
+
+entry {
+    placeholder: "Rechercher…";
+    placeholder-color: @subtext;
+}
+
+listview {
+    margin: 4px;
+    lines: 8;
+    scrollbar: false;
+}
+
+element {
+    padding: 8px 10px;
+    border-radius: 10px;
+    spacing: 8px;
+}
+
+element selected.normal {
+    background-color: @blue;
+    text-color: @darkbase;
+}
+
+element-icon {
+    size: 24px;
+}
+
+element-text {
+    text-color: inherit;
+    vertical-align: 0.5;
+}