So after spending lots of energy. Finally found the solution.

step 1: Go to the Toggle device toolbar

step 2: See to the top. Look for dimensions, make sure it is in Responsive.

step 3: Click the ellipsis (three dots) button within the Device Toolbar. >Select "Add device type.

step 4: A new "Device Type" dropdown will appear. Select "Desktop" from this dropdown

and voilà pain is gone.