Add possibility to change a node without disconnection another node

[dariatarakanova]

1) Remove "disconnect" button https://zpl.io/2Gjz6jj 2) Make all node types "active" while one of is connected. User can switch the node without disconnecting https://zpl.io/2jKqYqq

3) Add background under "connected" node https://zpl.io/2jKqYqq

4) Own node view. Button 'proceed' is needed only here. After button display popup with confirmation. https://zpl.io/2j3lr3q

5) Place icon closer to text (see screenshot below)

6) Make text-comment with left-align

7) Always display confirmation popup after user switch node.

From mobile to own https://zpl.io/bzzd7x4

From mobile to random https://zpl.io/VD3NWm3

From mobile to random (with active transactions) https://zpl.io/VqMzL46

From own to mobile https://zpl.io/aN3Oz39

From own to random https://zpl.io/aB3vW30

From own to random (with active transactions) https://zpl.io/VkPMePL

From random to mobile https://zpl.io/adoKNnR

From random to own https://zpl.io/V4XRzjQ

[KatsiarynaV]

1. When trying to change a node connection to own node the wallet is stuck while syncing

2. When we select another node connection and tap 'cancel' button the node type remains selected

https://user-images.githubusercontent.com/68267190/159645732-a647085a-0744-40a3-9e5d-670f65e1da1a.mp4

https://user-images.githubusercontent.com/68267190/159646239-186da957-5839-44e5-a2e3-5400c9e9ddbc.mp4

3. Incorrect message when switching from own to random node

[KatsiarynaV]

When opening the node settings screen the random node checkbox flashes for a moment

https://user-images.githubusercontent.com/68267190/159922057-ce654e6c-db15-4ed7-be32-ed52c11a4123.mp4

[KatsiarynaV]

Checked