fix(ui): KERIA down or connectivity issues during SSI setup

[Sotatek-DukeVu]

Description

Display new error message when KERIA down or connectivity issues during SSI setup

Checklist before requesting a review

Issue ticket number and link

• This PR has a valid ticket number or issue: link

Testing & Validation

• This PR has been tested/validated in IOS, Android and browser.
• The code has been tested locally with test coverage match expectations.
• Added new Unit/Component testing (if relevant).

Security

• No secrets are being committed (i.e. credentials, PII)
• This PR does not have any significant security implications

Code Review

• There is no unused functionality or blocks of commented out code (otherwise, please explain below)
• In addition to this PR, all relevant documentation (e.g. Confluence) and architecture diagrams (e.g. Miro) were updated

Design Review

• If this PR contains changes to the UI, it has gone through a design review with UX Designer or Product owner.
• In case PR contains changes to the UI, add some screenshots to notice the differences

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Browser

Network Issue

Screen.Recording.2025-02-26.at.14.35.24.mov

[iFergal]

Why are we showing that same error if the server was up but gave us the 404 that the agent does not exist? This means the seed phrase is wrong. That's a different error.

[iFergal]

The core already throws different errors for this:

• Network error: Agent.KERIA_CONNECT_FAILED_BAD_NETWORK
• 404/bad seed phrase: Agent.KERIA_NOT_BOOTED
• Other error, which can be a something went wrong toast like before: Agent.KERIA_BOOTED_ALREADY_BUT_CANNOT_CONNECT

[iFergal]

We don't need to check cause for this one because the error is already specific Agent.KERIA_CONNECT_FAILED_BAD_NETWORK

[Sotatek-DukeVu]

Done

[sdisalvo-crd]

Thanks @iFergal and sorry I got confused with the requirements.

@Sotatek-DukeVu Could you please take a look?

[Sotatek-DukeVu]

@iFergal
Why are we showing that same error if the server was up but gave us the 404 that the agent does not exist? This means the seed phrase is wrong. That's a different error.
I updated. Please take a look