I am using ubuntu 20.04 LTS. I don't know how I did this, but I tried to customize my dock settings using dash to dock extension. But then I realized that the space between 2 icons on the dock is too much and I don't like it. I need the default values. There isn't any option in the dconF-editor also. As you can see in these images, there is a huge space between my dock icons. Is there any method to correct this?
This is how my dock appears
This is the default dock