The UX for signing out multiple devices at once is very misleading

### Steps to reproduce

1. Open the "Security & Privacy" settings
1. Select multiple devices with the intent to sign them out

### Outcome

#### What did you expect?

In most UIs I've used (if not all of them, with the exception of Element) group actions appear at the top of the selection. I expected a "sign out" button to appear somewhere around the section's header, that I could click to sign out the devices I've selected.

#### What happened instead?

There is indeed a "sign out" button there, but that's the button to sign out my current device, which is definitely not something I want to do at this point. But since it's there and looks like the one I want, I click it and mistakenly sign out of my current device.

This has happened to me every time I tried to sign out multiple devices, without fail. Sometimes my device list is even long enough for the "Sign out x selected devices" to not even be visible on screen, which reinforces the thought that the button I see around the section's header is the correct one.

I thought I had already opened an issue about it but I can't find it, so here I am :slightly_smiling_face:

### Operating system

Arch Linux

### Browser information

Firefox 102.0.1

### URL for webapp

develop.element.io

### Application version

Element version: 787d4c41351e-react-38a913488feb-js-32bb4b1fc464, olm version: 3.2.8

### Homeserver

element.io

### Will you send logs?

No