refactor: replaced lodash with es-toolkit

[ganchoradkov]

Description

Replaced lodash with es-toolkit based on #5629 due to the conflicts in the main PR.

bundle size reduction after the change

• unpacked 3.54 MB down from 3.74 MB
  https://www.npmjs.com/package/@walletconnect/universal-provider/v/2.19.0-canary-es-toolkit-2?activeTab=code

Type of change

• Chore (non-breaking change that addresses non-functional tasks, maintenance, or code quality improvements)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Draft PR (breaking/non-breaking change which needs more work for having a proper functionality [Mark this PR as ready to review only when completely ready])
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

How has this been tested?

ci tests

Checklist

• I have performed a self-review of my own code
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

Additional Information (Optional)

Please include any additional information that may be useful for the reviewer.

Pull Request Overview

This PR refactors the codebase to replace lodash's merge utility with that provided by es-toolkit, leading to a slight reduction in bundle size.

• Replaced the lodash/merge import with es-toolkit/compat's merge.
• Achieved a minor bundle size reduction by removing the lodash dependency.

[socket-security]

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher
npm/[email protected]	None	0	2.77 MB	toss-build-bot

🚮 Removed packages: npm/@types/[email protected]

View full report↗︎