chore: remove unused zustand dependency

[vidhikasaxena]

What

Verified that zustand is not used in frontend source. Removed unused zustand dependency from frontend/package.json. Updated package-lock.json by running npm install. Also verified that after change frontend still builds.

Fixes #6

Type of change

• Bug fix
• New feature
• Breaking change
• Documentation update
• chore

Proof of work

• Verified Zustand is not imported anywhere in frontend/src
• Removed Zustand from frontend/package.json
• Regenerated package-lock.json with npm install
• Confirmed npm ls zustand returns empty
• Ran npm run lint successfully
• verified frontend still builds

Checklist

• I claimed this issue before starting work
• Branch name follows the convention (feature/, fix/, docs/)
• Commits follow Conventional Commits format
• CI is passing (lint, prettier, build)
• I have self-reviewed my own code
• Any non-obvious decisions are explained with a comment in the code

[BitForge95]

@vidhikasaxena could you rename the PR title from "zistand" to "zustand" and also the you have opted for the "New Feature" in the type of change , as it is just removing an unused dependency , you could add a checkbox of chore and opt it rather than "New Feature".

[vidhikasaxena]

@BitForge95 I’ve made the changes. Please check if everything is okay.

[BitForge95]

LGTM!

[PixelKnightDev]

looks good merging!