docs: add inline comments to script.js for new contributors

[harshithab371]

Fixes #54

What does this PR do?

Adds inline comments throughout static/script.js
to help new contributors understand the code.

Changes made

• Added comments above every function explaining its purpose
• Added inline comments on complex lines like isDuplicate,
  truncate, stopPropagation, fallbackCopy
• No logic was changed — documentation only

Files changed

• static/script.js

[vercel]

@harshithab371 is attempting to deploy a commit to the komalsony234-1530's projects Team on Vercel.

A member of the Team first needs to authorize it.

[harshithab371]

"Hey! I've raised a PR for this issue. Please review when you get a chance "

[komalharshita]

Thanks for the contribution. The inline comments and onboarding-focused documentation improvements are helpful for new contributors.

However, this PR currently has merge conflicts because static/script.js has changed significantly in recent merged PRs. Please pull the latest main branch, resolve the conflicts locally, and update the PR against the newest version of the file before review can continue.

Since the script structure has evolved, please also verify that all comments still match the latest implementation accurately after rebasing.

[harshithab371]

"Thanks for the review! I'll pull the latest main, resolve the conflicts, and verify all inline comments match the updated implementation. Will update the PR shortly."

[harshithab371]

Resolved merge conflicts by merging latest upstream/main into the branch. Updated all inline comments to match the new script.js implementation accurately.
Ready for re-review!

[komalharshita]

Thank you for addressing the requested changes and rebasing the PR against the latest main branch.

The updated inline comments are much better aligned with the current implementation and genuinely improve readability for new contributors onboarding into the project.

I especially appreciate that the comments focus on:

• accessibility behaviour,
• clipboard fallbacks,
• state synchronization,
• and UI interaction reasoning.

The PR now stays well-scoped to documentation improvements without introducing logic changes.

Nice work :)