chore: drop unused CSS selectors flagged by svelte compiler

- zehn-gebote: orphan `ul` rule left over from inline-toc removal.
- fitness/active: orphan .exercise-header*, .move-exercise*, .remove-exercise*,
  .add-exercise-btn rules left over from rail/focus refactor.

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "homepage",
-	"version": "1.49.0",
+	"version": "1.49.1",
 	"private": true,
 	"type": "module",
 	"scripts": {