Create default workspace on user creation

[rajdip-b]

Description

For the frontend to work properly, we need to create a default workspace for the user whenever they sign up. Requirements:

• Workspace should be named 'My Workspace'
• Add a property called isDefault in prisma schema
• Externalize the createWorkspace and its associated functions in workspace.servvice.ts to separate files under common module. You may need to pass around the prisma object as reference to these functions
• Call the createWorkspace function whenever a user signs up, or an admin creates the account. Relevant code can be found in auth.service.ts and user.service.ts
• Default workspaces can't be deleted by the creator, nor can their ownership be transferred to other people. Make sure the business logic in workspace.service.ts is updated accordingly
• When the owner's account is deleted, make sure that their default workspace and any other relevant data is deleted aswell.
• Create tests for these scenarios

[rajdip-b]

Add feature for default workspace

[rajdip-b]

🎉 This issue has been resolved in version 1.3.0 🎉

The release is available on GitHub release

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