Pie ChartView Data Overlapping and small values not appearing

## What did you do?

Trying to Draw Pie ChartView

## What did you expect to happen?

ℹ Pie Chart View without overlapping text and Slices for small values

## What happened instead?

ℹ Values are overalapping

## Charts Environment

**Charts version/Branch/Commit Number:** Latest
**Xcode version:** 13
**Swift version:** 5
**Platform(s) running Charts:**
**macOS version running Xcode:**

## Demo Project

ℹ Please link
![Uploading Simulator Screen Shot - iPhone 11 Pro - 2021-11-08 at 15.33.48.png…]()
to or upload a project we can download that reproduces the issue.

Start by reproducing the issue in the Pie ChartView using Swift 5 and Xcode 13; no demo project, platform details, files, or tests are provided. Inspect the pie-chart rendering path to determine why labels overlap and small-value slices are omitted. Done means the reported chart displays readable, non-overlapping values and visible small slices.

Written by the indexing model from the issue text.