Confusing wording in EX key screen

### Your use case

#### What would you like to do?
Get back into EX after updating the app

#### Why would you like to do it?
Because the update kicked me out of EX

#### How would you like to achieve it?
Start the app and get back in

#### What's happening?
The app declares that I need to confirm who I am. Which in itself is confusing as I just logged in, which should confirm who I am.

There is an option to use a recovery key at the bottom. Following that leads to another screen:

Here, it not only talks about a recovery key, but also:
- passcode
- security key
- security phrase

This is completely unclear and incomprehensible. I'm aware that there is legacy wording, but we make this a burden of every user.

It is also confusing that we have two terms above the box and two different terms below the box.

#### Suggestion
Can we please settle on one expression and primarily use that, like "recovery key" in the header as it is also used in the previous screen.

We could then add some explanation text below the box that gives context: "Please note that the recovery key used to be called passcode, security key or security key in the past. Any of these will work."

### Have you considered any alternatives?

_No response_

### Additional context

_No response_

### Are you willing to provide a PR?

No