add choices when username is nil

Overview:

• Add choices when username is nil or not
• There will be two options for message that will be sent to user who request forgot username

Related Task:

• https://airtable.com/appFxd9OiclhPM4Ji/tblQnSAVdNxV66v9P/viwxHJXi1Ys9xVDUH/rec1SzW2Ie5jelM56?blocks=hide

Evidence:

• title: Add choices when username is nil or not
• project: Sapawarga
• participants: @setiadijoe @ayocodingit