test: add tests for fx-fore sibling node placement and on-demand control handling

- Added unit tests to verify correct placement of sibling nodes under the intended parent in `fx-fore`.
- Ensured that `on-demand` controls properly create backing instance nodes while remaining hidden until activated.

Author: JoernT

CLAUDE.md

@@ -14,34 +14,10 @@ Fore is optimized for:
 * long-term preservation
 * fast development cycle
 
-## Tech Stack
-
-* npm
-* ES6 JavaScript
-* fontoXPath as XPath 3.1 implementation 
-* Web Components
-* cypress for e2e tests
-* karma for unit tests
-* vite as test server
-
 ## References
     - [Fore documentation](https://jinntec.github.io/fore-docs/tags/version-1.0.0/) — official element/attribute reference
     - [Fore demos](https://jinntec.github.io/Fore/doc/demos.html) - curated demos  
 
-## Commands
-
-```bash
-npm start                    # Dev server on port 8090 (Vite)
-npm run build                # Production bundles → dist/fore.js and dist/fore-dev.js
-npm test                     # Run unit tests once (headless Karma/Mocha)
-npm run test:watch           # Watch mode
-npm run lint                 # ESLint + Prettier check
-npm run format               # Auto-fix ESLint + Prettier
-npm run lint:types           # TypeScript type checking via JSDoc
-npm run docs                 # Generate Web Component Analyzer docs
-npx cypress run              # Run Cypress e2e tests - requires npm start first
-```
-
 ## Testing
 
 * Unit tests are using karma and are under '/tests' directory.

resources/home.css

@@ -275,7 +275,7 @@ nav.local-nav{
     /*background: linear-gradient(to left, rgba(255, 255, 255, 1), rgba(240, 240, 240, 0.99));*/
 
     border: none;
-    top:4rem;
+    top:3.5rem;
     border-bottom:1px solid rgba(0,0,0,0.2);
     white-space: nowrap;
     overflow: auto;