chore: cleanup redundant imports and bump to 3.0.1

Author: fabiocarneiro

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 3.0.1
+
+* **Internal:** Removed redundant imports to improve pub.dev analysis score.
+
 ## 3.0.0
 
 * **Breaking Change:** **"Widget as Root" Architecture**. Removed the requirement for a mandatory root `CircleNode` wrapper. The widget now acts as the hierarchy's root.

lib/flutter_circle_pack_chart_legend.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/material.dart';
 import 'flutter_circle_pack_chart.dart';
-import 'circle_pack_chart_scope.dart';
 
 /// A widget that displays a vertical legend for the currently focused level of a circular treemap.
 class FlutterCirclePackChartLegend extends StatelessWidget {

lib/flutter_circle_pack_chart_widget.dart

@@ -3,7 +3,6 @@ import 'dart:ui';
 import 'package:flutter/material.dart';
 import 'package:vector_math/vector_math_64.dart' hide Colors;
 import 'flutter_circle_pack_chart.dart';
-import 'circle_pack_chart_scope.dart';
 
 /// A widget that displays an animated circular treemap with camera-style drill-down.
 ///

pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_circle_pack_chart
 description: A powerful and interactive circle pack chart (circular treemap) library for Flutter.
-version: 3.0.0
+version: 3.0.1
 homepage: https://fabiocarneiro.github.io/FlutterCirclePackChart/
 repository: https://github.com/fabiocarneiro/FlutterCirclePackChart
 issue_tracker: https://github.com/fabiocarneiro/FlutterCirclePackChart/issues

test/circle_packer_scaling_test.dart

@@ -1,6 +1,5 @@
 import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter_circle_pack_chart/flutter_circle_pack_chart.dart';
-import 'dart:math';
 
 void main() {
   test('CirclePacker scales relative to total value, not absolute sqrt', () {