Inaccessible Hard disk
I am not able to save any files onto the hard disk neither is it visible as one of the options when I am trying to save any file.
Thanks for raising this issue. We will fix this in the upcoming update.
There is already a ticket for your request https://gitlab.com/iitb-rdp-linux-laptop/iitb-laptop-updates/issues/2.
The internal hard disk can be accessed by simply "click and mount" from the left pane of the Dolphin "file browser".
However, when you try to save any file from the web-browser it will give an error such as "Failed - Insufficient permissions".
To fix this try the following.
Assuming you have "clicked and mounted" the internal drive, then open the konsole (terminal) and run this command as a regular user(which is "user"):
sudo chown -R $USER:$USER /media/user/<your drive UUID>
That's all. Now try saving a file to the hard disk.