feat(fence): add height selection for fence panels and update related logic

- Introduced a new section in the UI for selecting fence heights, visible only when the fence option is enabled.
- Updated the fence label to clarify the presence of gates.
- Enhanced the JavaScript logic to manage the visibility of fence heights based on user selection.
- Modified the fence rendering logic to accommodate different heights and ensure proper visibility based on the selected height.
- Updated CSS to style the new fence height controls appropriately.
- Adjusted the model configuration to reflect changes in the fence height options.

locenice/data/app-config.json

@@ -1,6 +1,6 @@
 {
   "version": "locenice-web-01",
-  "model": "./models/dum.glb?v=20261026c",
+  "model": "./models/dum.glb?v=20261026e",
   "renderer": "auto",
   "threeModule": "https://cdn.jsdelivr.net/npm/three@0.180.0/build/three.module.js",
   "threeLoader": "https://cdn.jsdelivr.net/npm/three@0.180.0/examples/jsm/loaders/GLTFLoader.js",