closes #1467

Test:

• Go to wallet, referrals
• should be able to refer friends
• when friend register, should be seen in referrals list
• referrals list must shows pending and completed referrals, also there should be a ping button for pending referrals
• when pressing ping button, it has to change to pinged and the referral should receive a notification

added 1 commit

• 78f4dce0 - (fix) update referral screen snapshot

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