removed contractor's contact and disclaimer + moved abbreviations and document info to the end of the doc

Author: Stina-Gremme

DOCS/products/N2K_Product_User_Manual.qmd

@@ -20,6 +20,7 @@ Denmark\
 [**https://land.copernicus.eu/**](https://land.copernicus.eu/)
 :::
 
+{{< pagebreak >}}
 
 # Executive summary