[EPIC] Creating designs + UI for feature flag dashboard

[vikhyat187]

This task aims to create a simple wireframe for the dashboard for feature flags which can helps in This feature should come on dashboard site.

• Creating feature flags. A button to create feature flags.[Super user role]
• Viewing all feature flags currently present.
• Resetting the allowed request count.
• Showing the current request count consumed.
• Showing the feature flags, whose ETA has got passed. [Possible feature]

The smaller tasks

• [ ] #101
• [ ] #102
• [ ] #103