Stats echarts

Created by: karthiek390

Description

Replaced the metric visualizations on Stats/Tracking page with Apache echarts.

Changes Made

List the main changes made in this PR. Be as specific as possible.

• Feature added
• Bug fixed
• Code refactored
• Tests changed
• Documentation updated
• Other changes: [describe]

Checklist

Before submitting this PR, please make sure that:

• Your code passes linting and coding style checks.
• Documentation has been updated to reflect the changes.
• You have reviewed your own code and resolved any merge conflicts.
• You have requested a review from at least one team member.
• Any relevant issue(s) have been linked to this PR.