docs: update linking local dependencies guide

[Miska05]

Summary of Changes
This update enhances the linking-deps.mdx file in the Fuel Wallet documentation by adding clearer instructions and additional steps for linking local dependencies, specifically for the @fuel-ui and @fuel-ts repositories.

Details
Detailed Linking Instructions:

Added step-by-step guidance for linking @fuel-ui and @fuel-ts packages locally using pnpm. Provided clear examples of commands, such as linking dependencies to the global pnpm store and executing builds to reflect changes in the Fuel Wallet environment. Configuration Edits:

Instructed users on editing the scripts/deps.sh file in the fuels-wallet root directory to enable links for @fuel-ui and @fuel-ts by setting LINK_FUEL_UI and LINK_FUEL_TS flags. Running Development Commands:

Explained how to start the development server with linked dependencies using pnpm dev, pnpm dev:deps, and pnpm dev:crx commands. Verification and Testing Steps:

Added a new "Detailed Verification Steps" section to help users confirm that local dependencies are correctly linked and functioning. Included specific tests:
Component Rendering Test: Checks that components from @fuel-ui render correctly. Functionality Test: Verifies that functions from @fuel-ts return expected results. End-to-End (E2E) Test: Confirms that key workflows (e.g., wallet connection) work as expected. Troubleshooting Section:

Provided troubleshooting steps for first-time linking and setup issues, including re-running pnpm setup if necessary. Purpose
These updates are intended to improve the clarity and usability of the documentation, particularly for contributors setting up local dependencies. The new instructions and testing guidance will help reduce setup issues and ensure contributors have a smoother experience.

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