added multiple project search

[Ankit-69k]

Fix for the issue: Tech Stack Filter Limiting to Single Selection (Radio Button) – Should Be Checkboxes #94

• added checkbox in find project with multiple language
• updated types to accept array of strings instead of string for multipe language search

[vercel]

@Ankit-69k is attempting to deploy a commit to the AJEET PRATAP SINGH's projects Team on Vercel.

A member of the Team first needs to authorize it.

[cla-assistant]

All committers have signed the CLA.

[cla-assistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
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[apsinghdev]

hey @Ankit-69k, can you please sign the cla so that i can accept you contribution? also, please attach a screenshot/screen-recording of what changes your pr has made. 🙏

[Ankit-69k]

@apsinghdev here is a demo for the multiple project search feat

Screencast.From.2025-10-11.21-47-57.mp4