[Enhancement] add all steps to Figma

[oceanByte]

Motivation / Problem

Currently, only the first step is added in Figma. But the next step(s) should be added as well as they might differ in their layout, texts need to be added and it is not clear how the faucet will be displayed yet.

Solution

• Design all steps in Figma.
• Also add final texts to all steps ([Enhancement] add texts to the figma design (onboarding portal) #110)

[LucaMilanese90]

The idea for the faucet would be to only have one button to ask for the tokens, so the design of all the steps is indeed quite similar, the only difference would be that some steps have 2 sub-cards instead of 1 (add tokens to MetaMask and request tokens from the faucet)