UI styling improvements: dashboard headers and navigation

- Restore blue PageHeader on Dashboard (/app-components)
- Update homepage (/) with subtle header design without blue bar
- Add uniform PageHeader styling to application edit page
- Fix Rapporten link on homepage to point to /reports overview
- Improve header descriptions spacing for better readability

package.json

@@ -1,7 +1,7 @@
 {
-  "name": "zira-classificatie-tool",
+  "name": "cmdb-insight",
   "version": "1.0.0",
-  "description": "ZiRA Classificatie Tool voor Zuyderland CMDB",
+  "description": "CMDB Insight voor Zuyderland CMDB",
   "private": true,
   "workspaces": [
     "backend",