Keyboard appears on the Log in tab when input field has no focus

### Please answer the following questions for yourself before submitting an issue.

- [X] I am running the latest version
- [X] I checked the documentation and found no answer
- [X] I checked to make sure that this issue has not already been filed

### AdGuard VPN version

2.5.5

### Operating mode

None

### Environment

```markdown
- OS: Android 7.1.1, 8
- Device: Samsung, Motorola
- Firmware:
```

### Root access

- [ ] Yes, I have it.

### Issue Details

Steps to reproduce:
1. Go to **Account**
2. Tap on context menu (3 dots)
3. Tap on **Log out**

You are redirected to Log in screen. There is a keyboard, but there is no cursor in the input field.

### Expected Behavior

There is no keyboard until you tap on the input field.

### Screenshots

Screenshot 1:


### Additional Information

If you try to type something when there is no cursor in the filed, it types in the password field, which is on the next tab.