Add Bridge screen

[zaelgohary]

• Add bridge screen
• Fix ContactsScreen typo
• Edit stellar icon in wallets

Related Issues:

• https://github.com/threefoldtech/threefold_connect/issues/764
• https://github.com/threefoldtech/threefold_connect/issues/779

Active Swap

Inactive Swap

P.S. The images above use a large font size to demonstrate that the text does not overflow.

[zaelgohary]

@AhmedHanafy725 I set the minimum amount for swapping to be 2 just as in the Dashboard. Same for the Deposit.