How to change the position of the message writing form so that it is at the top of the page ?
Grzegorz
By modifying the codebase. The codebase is open-source and available on GitHub. When modifying the codebase you are always on your own as you are deviating from core. You will proceed at your own risk.
Cheers.
What file needs to be modified?
As mentioned in my previous comment, when you modify the codebase you are on your own.
still do not understand
It means you will have to search through the codebase on your own and make the needed edits on your own.
I was hoping to get help here on where exactly the changes should be made
As stated above, we do not assist with customizations because you are deviating from core. There are sites like Fiverr, etc. where you can find someone to do it for you if you don't know how or incapable of doing so on your own.
