Landlord Made Illegal Renovations, Now Has To Revert Them And Is Not Willing To Compensate

Hi folks, I've desperately searched for something similar to this for the past few weeks and just cannot find anything.

Background: My landlord updated the outlets of the unit against code that were against code. Namely, they had replaced 2-prong outlets with 3-prong without grounding. When I noticed, I asked them to fix it with GFCI outlets which would have cost them ~$25 but they refused saying they didn't have to. It wasn't until they received a letter about the code violation that they finally said they would fix the issue. However, they are fixing it by putting in 2-prong outlets. This seems to be acceptable as far as the electrical code is concerned so I guess I have to let them make the "repair".

This is problematic because several of my electronics will no longer work. This includes my computer, my monitor, all of my power strips (so won't be able to plug in several lights, TV speakers, fans, etc.). And to top it all off, if my computer doesn't work, my TV is useless until I find something else to connect to it and my options are limited because no power bar.

I tried to be reasonable and attempted to work with them to find a solution for the mistake they made but they haven't done anything to indicate they care. I asked for a reduction in rent because of this change and they're basically telling me that I can terminate my lease instead (which would be far more costly for me and great for them since rents have increased). It almost seems like they think if they just ignore me, I'll eventually give up and accept this

TLDR: landlord replaced 2-prong with 3-prong without grounding (against code). They refused to fix them with GFCI or adding a ground wire until city sent a letter requiring they fix it. Now they are replacing them with 2-prong which is a pretty major downgrade for me and unwilling to compensate me for it.

Question: Is the only option I have to take them to court / arbitration over this? If so, what can I even sue for? It's kind of hard for me to quantify the damages despite the fact that not being able to use my things where I live is a damage in my view.

As I understand, I can recoup reasonable attorney fees if I were to win so I think that's my next step. But I also don't want to start that process unless it's something that has merit.

Location: Washington State