[Wallet UI - Wallet stabiliry] Review and implement the `stickers` and `ens` purchase user stories

[alexjba]

Description

Review the user stories described in the notion pages below and make sure the app flows are aligned.

• https://www.notion.so/Purchase-Stickers-flow-34fb6e3fe49c49c4be05bb2d31d97d39
• https://www.notion.so/Purchase-ENS-domain-flow-71e76eed1b284368b0b0cc50b71ba04f

[alexjba]

cc: @noeliaSD