Invite someone to discord group using slash commands

[pallabez]

Issue Description

Improve accessibility of discord groups.

Expected Behavior

Provide a discord slash command to ping someone dashboard group link.

• Typing - /group-invite @pallab <groups option>
• Response - @pallab click here to be added to the group

Eg -

• If Ankush wants to give Pallab to join group-hangouters
• Then Ankush can simply type
  /group-invite @pallab group-hangouters
• Which discord bot returns the link to the dashboard site

Current Behavior

None

Reproducibility

• This issue is reproducible
• This issue is not reproducible

Steps to Reproduce

Severity/Priority

• Critical
• High
• Medium
• Low

Additional Information

Checklist

• I have read and followed the project's code of conduct.
• I have searched for similar issues before creating this one.
• I have provided all the necessary information to understand and reproduce the issue.
• I am willing to contribute to the resolution of this issue.