add dockerfile and dockerignore

[agarwalhimanshugaya]

Related Issue

Fixes #221

Description

[Please include a brief description of the changes or features added]
I add the dockerfile and dockerignore file which helps us to make a docker image and run this app with docker locally

Type of PR

• Bug fix
• Feature enhancement
• Documentation update
• Other (specify): _______________

Screenshots / videos (if applicable)

[Attach any relevant screenshots or videos demonstrating the changes]

unicollab-demo.mp4

Checklist:

• I have performed a self-review of my code
• I have read and followed the Contribution Guidelines.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers, screenshots, and videos after making the changes.
• I have commented my code, particularly in hard-to-understand areas.

Additional context:

[Include any additional information or context that might be helpful for reviewers.]

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Name	Status	Preview	Comments	Updated (UTC)
uni-collab	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 7, 2024 7:39am

[github-actions]

Thank you for submitting your pull request! 🙌 We'll review it as soon as possible. In the meantime, please ensure that your changes align with our CONTRIBUTE.md. If there are any specific instructions or feedback regarding your PR, we'll provide them here. Thanks again for your contribution! 😊

[SUGAM-ARORA]

Approved