[Task] Create simple helper functions for wallet-selector

[thisisjoshford]

Background

near/docs#2208 mentions updating all example's wallet-selector.js file. This helper file abstracts away the complexities of integrating a wallet selector and allows for easy imports of helper files to do everyday tasks.

Rather than guiding devs to use this file, let's integrate these helper files within the wallet-selector repo itself for easy import/export.

User Story

As a developer, I would like a simple-to-use wallet integration tool that allows me to easily import the methods I need that are always up-to-date.

Acceptance Criteria

• Review wallet-selector.ts to see common methods used & exported for developers
• Implement these helper files into the wallet-selector repo directly for developers to import directly from this package
• Create tests for new functionality of the repo
• Solicit feedback from team on the new workflow

Resources & Additional Notes

No response

Priority

🟠 P1 : High