Added new projects and updated script.js

[riyaa060]

What does this PR do?

• Added currency converter project
• Added expense tracker project
• Updated script.js file with projects names in correct order

Fixes #534 Fixes #499 Fixes #505

Type of change

• Bug fix (non-breaking change which fixes an issue)
• This change requires a documentation update

Mandatory Tasks

• [x] Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.

[netlify[bot]]

✅ Deploy Preview for openfrontendmentor ready!

Name	Link
🔨 Latest commit	3f7b36fb11e999513185076266a328ccce002b20
🔍 Latest deploy log	https://app.netlify.com/sites/openfrontendmentor/deploys/6719d95524d22b000739a6bf
😎 Deploy Preview	https://deploy-preview-561--openfrontendmentor.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.