feat: Added InstantLinkWallet type

[amirsaran3]

Description

This will enable wallet developers to run signIn function on initialization.

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

Type of change.

• FIX - a PR of this type patches a bug.
• FEATURE - a PR of this type introduces a new feature.
• BUILD - a PR of this type introduces build changes.
• CI - a PR of this type introduces CI changes.
• DOCS - a PR of this type introduces DOCS improvement.
• STYLE - a PR of this type introduces style changes.
• REFACTOR - a PR of this type introduces refactoring.
• PERFORMANCE - a PR of this type introduces performance changes.
• TEST - a PR of this type adds more tests.
• CHORE - a PR introduces other changes than the specified above.

[kujtimprenkuSQA]

Left a few comments in-line, once the comments are addressed I think we need feedback from Ben.

I think we need to know how they handle the contractId between dApp and Keypom because in the video it was not clear and in that autoSignIn function they hard code it.