feat(wofi-style): add wofi application menu styling with catppuccin mocha theme

Add a new CSS stylesheet for wofi (application launcher menu triggered with Super+R) that implements the Catppuccin Mocha blue color scheme. The stylesheet includes styling for the window, input field, menu entries, and selection states with rounded corners and appropriate contrast ratios.

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

@@ -0,0 +1,42 @@
+/* FWS — style wofi (menu d'applications Super+R). Catppuccin Mocha, bleu. */
+
+window {
+    background-color: rgba(30, 30, 46, 0.96);   /* base #1e1e2e */
+    border: 2px solid #89b4fa;
+    border-radius: 14px;
+    font-family: "Noto Sans", sans-serif;
+    font-size: 14px;
+}
+
+#input {
+    background-color: #313244;                   /* surface0 */
+    color: #cdd6f4;
+    border: none;
+    border-radius: 10px;
+    margin: 12px;
+    padding: 8px 12px;
+}
+
+#input image { color: #89b4fa; }
+
+#inner-box {
+    margin: 0 8px 8px 8px;
+}
+
+#entry {
+    padding: 8px 10px;
+    border-radius: 10px;
+    color: #cdd6f4;
+}
+
+#entry:selected {
+    background-color: #89b4fa;
+    color: #1e1e2e;
+}
+
+#entry:selected #text { color: #1e1e2e; }
+
+#text {
+    margin-left: 8px;
+    color: inherit;
+}