Description

This pull request introduces a .vscode folder with the following default settings and extensions:

• Extensions: ESLint (dbaeumer.vscode-eslint) and Prettier (esbenp.prettier-vscode).
• Settings: Customizes the color of the VS Code UI, including active/inactive title bar background and foreground, as well as the activity bar border.

These changes aim to standardize the development environment and improve code quality by ensuring consistent formatting and linting.

Related issues

Fixes: N/A

Manual testing steps

1. Pull the branch and open the project in VS Code.
2. Verify that the recommended extensions (ESLint and Prettier) are suggested upon opening the project.
3. Check that the custom color settings are applied to the VS Code UI:
   • Active title bar background and foreground colors.
   • Inactive title bar background and foreground colors.
   • Activity bar border.

Screenshots/Recordings

Before

Inactive

Active

After

Inactvie

Active

Pre-merge author checklist

• I've followed MetaMask Contributor Docs.
• I've completed the PR template to the best of my ability.
• I’ve included tests if applicable.
• I’ve documented my code using JSDoc format if applicable.
• I’ve applied the right labels on the PR (see labeling guidelines).

Pre-merge reviewer checklist

• I've manually tested the PR.
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.