Only some things you can do in the xml editor... moving thing and sizing is not one of them. You can change name, numbers, some times the size, etc. Sometimes the format of the .svg, you don't even know what it is. Trying to build a part from nearly scratch would take a lot of calculations. Much easier to fix it in a graphics editor.
I will work on it tonight, it is no big deal. I guess you are going to solder it through hole. I see that it has 1mm diameter pins.