Fix issue#117

[Abhishek-Punhani]

Description

. Added a Reusable copyButton Component . Added a optional close prop in Modal . Added Start Game Modal. It has two copyButtons to copy game id and invite link. Displays Current Game id , number of players joined and start game button to start game

Fixes : #117

Checklist

• [ ] I have tested these changes locally.
• [ ] I have reviewed the code and ensured it follows the project's coding guidelines.
• [ ] I have updated the documentation, if necessary.
• [ ] I have assigned reviewers to this pull request.

Screenshots (if applicable)

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[kuv2707]

Merging it, though I'd have to change couple things and I forsee obscure bugs. Thanks for all the work @Abhishek-Punhani