New onboarding: Login by Syncing Error Message Handling & Flow Issues

[glitchminer]

Metadata

• Original Issue Numbers: 23, 24, 25
• Source: New onboarding integration (happy paths) #17045 (comment)

Issue 23 - Error text shows incorrect message

Field	Description
Current Behavior	Error text displays 'This does not look like a pairing code'
Expected Behavior	Error text should display 'This is not a pairing code'
Location/Screen	Login by syncing, enter code
Figma URL	https://www.figma.com/design/Lw4nPYQcZOPOwTgETiiIYo/Desktop-Onboarding-Redesign?node-id=972-43252&m=dev

Issue 24 - Expired code shows wrong screen

Field	Description
Current Behavior	Expired code goes to sync failed screen. Pressing try again repeatedly eventually shows success but gets stuck on 'preparing status for you' screen
Expected Behavior	Error text should display 'This pairing code has expired'
Location/Screen	Login by syncing, enter code
Figma URL	https://www.figma.com/design/Lw4nPYQcZOPOwTgETiiIYo/Desktop-Onboarding-Redesign?node-id=972-43329&m=dev

Issue 25 - Used code shows wrong screen

Field	Description
Current Behavior	Code used before goes to sync failed screen
Expected Behavior	Error text should display 'This pairing code has been used before'
Location/Screen	Login by syncing, enter code
Figma URL	https://www.figma.com/design/Lw4nPYQcZOPOwTgETiiIYo/Desktop-Onboarding-Redesign?node-id=972-43376&m=dev