feat(releng): add wofi keyboard shortcuts panel styling

Add CSS stylesheet for the FWS keyboard shortcuts panel (fws-hypr-keys) using monospace font to align key combinations with descriptions. Uses the same color palette as the wofi menu with Catppuccin theme colors.

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

@@ -0,0 +1,40 @@
+/* FWS — style du panneau « Raccourcis clavier » (fws-hypr-keys).
+   Même palette que le menu wofi, mais police MONOSPACE : les colonnes
+   combinaison/description sont alignées par des espaces. */
+
+window {
+    background-color: rgba(30, 30, 46, 0.97);
+    border: 2px solid #89b4fa;
+    border-radius: 14px;
+    font-family: "Noto Sans Mono", monospace;
+    font-size: 13px;
+}
+
+#input {
+    background-color: #313244;
+    color: #cdd6f4;
+    border: none;
+    border-radius: 10px;
+    margin: 12px;
+    padding: 8px 12px;
+    font-family: "Noto Sans", sans-serif;
+}
+
+#input image { color: #89b4fa; }
+
+#inner-box {
+    margin: 0 8px 8px 8px;
+}
+
+#entry {
+    padding: 5px 10px;
+    border-radius: 8px;
+    color: #cdd6f4;
+}
+
+#entry:selected {
+    background-color: #313244;
+    color: #89b4fa;
+}
+
+#text { color: inherit; }