Update the Goals form

[shreya-mishra]

Issue Description

Update the Goals form dropdown with discord groups

Expected Behavior

drop-down list should have rds members and discord groups

Current Behavior

right now we just have an option of selecting members.

Environment

• Android/iOS

Additional Information

API for selecting rds discord groups : https://api.realdevsquad.com/discord-actions/groups
For more info checkout the website : https://dashboard.realdevsquad.com/groups/

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.

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