Rework set password screen

[dariatarakanova]

Currently, the order and the grouping of fields when setting the password is not very intuitive. Therefore, let's make it better:

1) Empty password fields https://zpl.io/VK98mmA

• replace line input field with box input field
• place the password requirement below the password and it's confirmation.
• button inactive
• make 10% opacity (instead of 5%) on focused field (as on "Password" field)
• make title in caps

2) Password filled, confirmation - error https://zpl.io/a3P833d

• make box in red color (oppacity 15%)
• button inactive because of error
• add error text

3) Password filled and confirmation correct https://zpl.io/Vql6koY

• button active

4) Add "eye" icons only on the focused field.

[KatsiarynaV]

1. 10% opacity should appear after selecting field. Now it appears after entering an amount and doesn't disappear after selecting other field

2. Error should not disappear when taping on the eye icon

https://user-images.githubusercontent.com/68267190/137904694-8d4a439e-71c2-430a-9995-c83b947d8d7c.mp4

3. When going back from Node selection screen to "Password" screen the "next" button should be active. Wallet crashes when user re-enters password and tap on the "next" button again

https://user-images.githubusercontent.com/68267190/137904800-e2af92fb-f8d6-4218-9568-43b6e5262f90.mp4

[KatsiarynaV]

Checked