Update credential offer loading screens with new loading screen designs | Dev

[knguyenBC]

Description of feature / user story
As a developer, I want to be able to see where in the process of a credential offer or proof request is, especially when the holder has taken a screenshot, so that I can know where the holder is having issues

As a holder, I want to be able to know if they are experiencing an issue, so that they can immediately try to troubleshoot for themselves.

Acceptance Criteria
Given the holder has received a credential offer
When they accept their credential
Then they are presented with updated loading screens

Wireframes or relevant image assets / links
Figma file

Logic flow diagrams

Credential offer flow