[FEATURE] Capability to see and share User's recent activity #57

Why do we need this ?

As we know, most of the customers for the GitHub App would be developer teams, the following feature would be a very helpful conversation booster for them, one can easily see his own GitHub activity for the last week or month and can share it with teams, along with that the feature has a very good scope while approaching people in Open-Source, making it very easy to share a log of your last week's activity without having to recollect and share from GitHub. 🐳

Acceptance Criteria

• Add Function for Fetching GitHub Activity Data
• Added Shared Interfaces and Data Parsing from Activity API Calls
• Add Activity Contextual Bar and List Items
• Implement Sorting Mechanisms for Activity Contextual Menu
• Implement Necessary Triggers for Opening Activity Contextual Bar