Would this make you angry?

As we were in the hospital after giving birth, my MIL went to our house to clean, which I am very thankful for, my house wasn’t dirty but she wanted to help, but while she was there she moved our living room furniture around, moved things in the kitchen and re decorated, “organized” and cleaned out my sons room, which I had JUST did and had it how I wanted, she asked me before she did and I told her I had already did it how I wanted then I find out she did it anyways and went and bought a bunch of junk that doesn’t match his room and stuff we will never use, but will get mad if we don’t want it/give it back or throw it away😬